array('name' => 'GPT-4o', 'context_window' => 128000), 'gpt-4o-mini' => array('name' => 'GPT-4o Mini', 'context_window' => 128000), 'gpt-4-turbo' => array('name' => 'GPT-4 Turbo', 'context_window' => 128000), 'gpt-3.5-turbo' => array('name' => 'GPT-3.5 Turbo', 'context_window' => 16385) ); protected $context_window = 128000; protected $supports_streaming = true; } class AnthropicProvider extends BaseAIProvider { protected $id = 'anthropic'; protected $name = 'Anthropic'; protected $logo = 'anthropic.svg'; protected $api_endpoint = 'https://api.anthropic.com/v1'; protected $auth_type = 'api_key'; protected $default_model = 'claude-sonnet-4-20250514'; protected $models = array( 'claude-opus-4-20250514' => array('name' => 'Claude Opus 4', 'context_window' => 200000), 'claude-sonnet-4-20250514' => array('name' => 'Claude Sonnet 4', 'context_window' => 200000), 'claude-3-5-sonnet-20241022' => array('name' => 'Claude 3.5 Sonnet', 'context_window' => 200000), 'claude-3-5-haiku-20241022' => array('name' => 'Claude 3.5 Haiku', 'context_window' => 200000), 'claude-3-opus-20240229' => array('name' => 'Claude 3 Opus', 'context_window' => 200000), 'claude-3-sonnet-20240229' => array('name' => 'Claude 3 Sonnet', 'context_window' => 200000), 'claude-3-haiku-20240307' => array('name' => 'Claude 3 Haiku', 'context_window' => 200000) ); protected $context_window = 200000; protected $supports_streaming = true; public function get_chat_url() { return 'https://api.anthropic.com/v1/messages'; } public function build_headers(array $config) { $api_key = isset($config['api_key']) ? $config['api_key'] : ''; $headers = array( 'Content-Type: application/json', 'x-api-key: ' . $api_key, 'anthropic-version: 2023-06-01', 'Accept: application/json' ); return $headers; } public function build_payload(array $messages, $model, array $options = array()) { $system_message = ''; $filtered_messages = array(); foreach ($messages as $msg) { if ($msg['role'] === 'system') { $system_message .= $msg['content'] . "\n"; } else { $filtered_messages[] = $msg; } } $payload = array( 'model' => $model, 'messages' => $filtered_messages, 'stream' => !empty($options['stream']) ); if (!empty($system_message)) { $payload['system'] = trim($system_message); } if (!empty($options['temperature'])) { $payload['temperature'] = floatval($options['temperature']); } if (!empty($options['max_tokens'])) { $payload['max_tokens'] = intval($options['max_tokens']); } else { $payload['max_tokens'] = 4096; } return $payload; } public function parse_stream_chunk($chunk) { if (strpos($chunk, 'data: ') === 0) { $json_str = substr($chunk, 6); if (trim($json_str) === '[DONE]') { return array('done' => true); } $data = json_decode($json_str, true); if (!empty($data['type']) && $data['type'] === 'content_block_delta') { if (!empty($data['delta']['text'])) { return array( 'content' => $data['delta']['text'], 'done' => false ); } } } return array(); } public function parse_response($response) { $data = json_decode($response, true); if (!empty($data['error'])) { $error_msg = isset($data['error']['message']) ? $data['error']['message'] : 'Unknown error'; return array('error' => $error_msg); } if (!empty($data['content'][0]['text'])) { return array( 'content' => $data['content'][0]['text'], 'usage' => !empty($data['usage']) ? $data['usage'] : null ); } return array('error' => 'Invalid response format'); } public function get_error_message(array $response) { if (!empty($response['error']['message'])) { return $response['error']['message']; } return 'Unknown error occurred'; } } class GoogleProvider extends BaseAIProvider { protected $id = 'google'; protected $name = 'Google'; protected $logo = 'google.svg'; protected $api_endpoint = 'https://generativelanguage.googleapis.com/v1'; protected $auth_type = 'api_key'; protected $default_model = 'gemini-2.5-pro'; protected $models = array( 'gemini-2.5-pro' => array('name' => 'Gemini 2.5 Pro', 'context_window' => 1000000), 'gemini-2.5-flash' => array('name' => 'Gemini 2.5 Flash', 'context_window' => 1000000), 'gemini-1.5-pro' => array('name' => 'Gemini 1.5 Pro', 'context_window' => 1000000), 'gemini-1.5-flash' => array('name' => 'Gemini 1.5 Flash', 'context_window' => 1000000), 'gemini-1.5-flash-8b' => array('name' => 'Gemini 1.5 Flash 8B', 'context_window' => 1000000) ); protected $context_window = 1000000; protected $supports_streaming = true; public function get_chat_url() { return 'https://generativelanguage.googleapis.com/v1beta/models'; } public function build_headers(array $config) { $headers = array( 'Content-Type: application/json' ); return $headers; } public function get_chat_url_with_model($model, array $config) { $key = !empty($config['api_key']) ? '?key=' . $config['api_key'] : ''; return 'https://generativelanguage.googleapis.com/v1beta/models/' . $model . ':generateContent' . $key; } public function build_payload(array $messages, $model, array $options = array()) { $contents = array(); foreach ($messages as $msg) { $role = ($msg['role'] === 'assistant') ? 'model' : 'user'; $contents[] = array( 'role' => $role, 'parts' => array(array('text' => $msg['content'])) ); } $payload = array( 'contents' => $contents, 'generationConfig' => array( 'temperature' => !empty($options['temperature']) ? floatval($options['temperature']) : 0.9, 'maxOutputTokens' => !empty($options['max_tokens']) ? intval($options['max_tokens']) : 8192 ) ); return $payload; } public function parse_stream_chunk($chunk) { $data = json_decode($chunk, true); if (!empty($data['candidates'][0]['content']['parts'][0]['text'])) { return array( 'content' => $data['candidates'][0]['content']['parts'][0]['text'], 'done' => !empty($data['candidates'][0]['finishReason']) ); } return array(); } public function parse_response($response) { $data = json_decode($response, true); if (!empty($data['error'])) { $error_msg = isset($data['error']['message']) ? $data['error']['message'] : 'Unknown error'; return array('error' => $error_msg); } if (!empty($data['candidates'][0]['content']['parts'][0]['text'])) { return array( 'content' => $data['candidates'][0]['content']['parts'][0]['text'], 'usage' => !empty($data['usageMetadata']) ? $data['usageMetadata'] : null ); } return array('error' => 'Invalid response format'); } } class OpenRouterProvider extends BaseAIProvider { protected $id = 'openrouter'; protected $name = 'OpenRouter'; protected $logo = 'openrouter.svg'; protected $api_endpoint = 'https://openrouter.ai/api/v1'; protected $auth_type = 'api_key'; protected $default_model = 'anthropic/claude-3.5-sonnet'; protected $models = array(); // Dynamic protected $context_window = 128000; protected $supports_streaming = true; public function get_supported_models() { if (!empty($this->models)) { return $this->models; } return array( 'anthropic/claude-3.5-sonnet' => array('name' => 'Claude 3.5 Sonnet'), 'openai/gpt-4o' => array('name' => 'GPT-4o'), 'openai/gpt-4o-mini' => array('name' => 'GPT-4o Mini'), 'meta-llama/llama-3-70b' => array('name' => 'Llama 3 70B'), 'google/gemini-2.5-pro' => array('name' => 'Gemini 2.5 Pro') ); } } class OllamaProvider extends BaseAIProvider { protected $id = 'ollama'; protected $name = 'Ollama (Local)'; protected $logo = 'ollama.svg'; protected $api_endpoint = 'http://127.0.0.1:11434/v1'; protected $auth_type = 'none'; protected $default_model = 'llama3'; protected $models = array(); // Dynamic from server protected $context_window = 4096; protected $supports_streaming = true; public function get_supported_models() { return $this->models; } public function fetch_models_from_server(array $config) { $url = 'http://127.0.0.1:11434/api/tags'; $ch = curl_init($url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_TIMEOUT, 5); $response = curl_exec($ch); curl_close($ch); if ($response) { $data = json_decode($response, true); if (!empty($data['models'])) { $models = array(); foreach ($data['models'] as $model) { $name = $model['name']; $models[$name] = array('name' => $name); } $this->models = $models; } } return $this->models; } } class OllamaCloudProvider extends BaseAIProvider { protected $id = 'ollama_cloud'; protected $name = 'Ollama Cloud'; protected $logo = 'ollama.svg'; protected $api_endpoint = 'https://ollama.com/v1'; protected $auth_type = 'api_key'; protected $default_model = 'llama3'; protected $models = array( 'llama3' => array('name' => 'Llama 3', 'context_window' => 128000), 'codellama' => array('name' => 'Code Llama', 'context_window' => 128000), 'mistral' => array('name' => 'Mistral', 'context_window' => 128000), ); protected $context_window = 128000; protected $supports_streaming = true; private function get_cache_file() { $dir = AIFileHandler::get_ai_base_dir('') . '/provider'; return $dir . '/' . $this->id . '.json.php'; } private function load_from_cache() { $file = $this->get_cache_file(); $data = AIFileHandler::read($file); if (empty($data) || empty($data['fetched_at']) || empty($data['models'])) { return null; } if (time() - intval($data['fetched_at']) > 86400) { return null; } return $data['models']; } private function save_to_cache(array $models) { $file = $this->get_cache_file(); AIFileHandler::write($file, array( 'fetched_at' => time(), 'models' => $models )); } public function fetch_models_from_server(array $config = array()) { $base_url = !empty($config['base_url']) ? rtrim($config['base_url'], '/') : rtrim($this->api_endpoint, '/'); $url = $base_url . '/models'; $ch = curl_init($url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_TIMEOUT, 10); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5); if (!empty($config['api_key'])) { curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization: Bearer ' . $config['api_key'])); } $response = curl_exec($ch); $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch); if ($response === false || $http_code !== 200) { return array(); } $data = json_decode($response, true); if (empty($data) || !is_array($data)) { return array(); } $raw_models = array(); if (!empty($data['data']) && is_array($data['data'])) { $raw_models = $data['data']; } elseif (!empty($data['models']) && is_array($data['models'])) { $raw_models = $data['models']; } if (empty($raw_models)) { return array(); } $models = array(); foreach ($raw_models as $model) { if (empty($model['id'])) { continue; } $mid = $model['id']; $models[$mid] = array( 'name' => !empty($model['name']) ? $model['name'] : $mid, 'context_window' => !empty($model['context_window']) ? intval($model['context_window']) : $this->context_window ); } return $models; } public function get_supported_models() { $cached = $this->load_from_cache(); if ($cached !== null) { return $cached; } $api_models = $this->fetch_models_from_server(); if (!empty($api_models)) { $this->save_to_cache($api_models); return $api_models; } return $this->models; } public function get_default_model() { $models = $this->get_supported_models(); if (!empty($models[$this->default_model])) { return $this->default_model; } if (!empty($models)) { return array_key_first($models); } return $this->default_model; } } class GroqProvider extends BaseAIProvider { protected $id = 'groq'; protected $name = 'Groq'; protected $logo = 'groq.svg'; protected $api_endpoint = 'https://api.groq.com/openai/v1'; protected $auth_type = 'api_key'; protected $default_model = 'llama-3.3-70b'; protected $models = array( 'llama-3.3-70b' => array('name' => 'Llama 3.3 70B', 'context_window' => 128000), 'mixtral-8x7b' => array('name' => 'Mixtral 8x7B', 'context_window' => 32000), 'llama-3.1-8b-instant' => array('name' => 'Llama 3.1 8B Instant', 'context_window' => 128000) ); protected $context_window = 128000; protected $supports_streaming = true; } class TogetherProvider extends BaseAIProvider { protected $id = 'together'; protected $name = 'Together AI'; protected $logo = 'together.svg'; protected $api_endpoint = 'https://api.together.xyz/v1'; protected $auth_type = 'api_key'; protected $default_model = 'meta-llama/Llama-3-70b'; protected $models = array( 'meta-llama/Llama-3-70b' => array('name' => 'Llama 3 70B'), 'meta-llama/Llama-3.3-70b' => array('name' => 'Llama 3.3 70B'), 'deepseek-ai/DeepSeek-R1' => array('name' => 'DeepSeek R1') ); protected $context_window = 128000; protected $supports_streaming = true; } class DeepSeekProvider extends BaseAIProvider { protected $id = 'deepseek'; protected $name = 'DeepSeek'; protected $logo = 'deepseek.svg'; protected $api_endpoint = 'https://api.deepseek.com/v1'; protected $auth_type = 'api_key'; protected $default_model = 'deepseek-chat'; protected $models = array( 'deepseek-chat' => array('name' => 'DeepSeek Chat', 'context_window' => 128000), 'deepseek-coder' => array('name' => 'DeepSeek Coder', 'context_window' => 128000) ); protected $context_window = 128000; protected $supports_streaming = true; } class AzureProvider extends BaseAIProvider { protected $id = 'azure'; protected $name = 'Azure OpenAI'; protected $logo = 'azure.svg'; protected $api_endpoint = 'https://{resource}.openai.azure.com/openai/deployments/{deployment}/chat/completions'; protected $auth_type = 'api_key'; protected $default_model = 'gpt-4o'; protected $models = array(); protected $context_window = 128000; protected $supports_streaming = true; public function validate_config(array $config) { $errors = array(); if (empty($config['resource'])) { $errors[] = 'Azure resource name is required'; } if (empty($config['deployment'])) { $errors[] = 'Azure deployment name is required'; } if (empty($config['api_key'])) { $errors[] = 'API key is required'; } return $errors; } public function get_chat_url() { return 'https://{resource}.openai.azure.com/openai/deployments/{deployment}/chat/completions?api-version=2024-02-01'; } public function build_headers(array $config) { $api_key = isset($config['api_key']) ? $config['api_key'] : ''; return array( 'Content-Type: application/json', 'api-key: ' . $api_key ); } } class BedrockProvider extends BaseAIProvider { protected $id = 'bedrock'; protected $name = 'AWS Bedrock'; protected $logo = 'aws.svg'; protected $api_endpoint = 'bedrock'; protected $auth_type = 'aws'; protected $default_model = 'anthropic.claude-3-sonnet'; protected $models = array(); protected $context_window = 200000; protected $supports_streaming = true; public function validate_config(array $config) { $errors = array(); if (empty($config['region'])) { $errors[] = 'AWS region is required'; } if (empty($config['access_key']) && empty($config['use_instance_role'])) { $errors[] = 'AWS access key or instance role is required'; } return $errors; } } class FireworksProvider extends BaseAIProvider { protected $id = 'fireworks'; protected $name = 'Fireworks AI'; protected $logo = 'fireworks.svg'; protected $api_endpoint = 'https://api.fireworks.ai/v1'; protected $auth_type = 'api_key'; protected $default_model = 'accounts/fireworks/models/llama-3-70b'; protected $models = array( 'accounts/fireworks/models/llama-3-70b' => array('name' => 'Llama 3 70B'), 'accounts/fireworks/models/qwen2-72b' => array('name' => 'Qwen2 72B') ); protected $context_window = 128000; protected $supports_streaming = true; } class CloudflareProvider extends BaseAIProvider { protected $id = 'cloudflare'; protected $name = 'Cloudflare AI Gateway'; protected $logo = 'cloudflare.svg'; protected $api_endpoint = 'https://api.cloudflare.com/client/v4/ai'; protected $auth_type = 'api_key'; protected $default_model = '@cf/meta/llama-3.1-8b-instruct'; protected $models = array( '@cf/meta/llama-3.1-8b-instruct' => array('name' => 'Llama 3.1 8B'), '@cf/meta/llama-3.1-70b-instruct' => array('name' => 'Llama 3.1 70B') ); protected $context_window = 128000; protected $supports_streaming = true; } class HuggingFaceProvider extends BaseAIProvider { protected $id = 'huggingface'; protected $name = 'Hugging Face'; protected $logo = 'huggingface.svg'; protected $api_endpoint = 'https://api-inference.huggingface.co/v1'; protected $auth_type = 'api_key'; protected $default_model = 'meta-llama/Llama-3-70b'; protected $models = array(); // Dynamic protected $context_window = 128000; protected $supports_streaming = true; } class OpenCodeZenProvider extends BaseAIProvider { protected $id = 'opencode_zen'; protected $name = 'OpenCode Zen (Free)'; protected $logo = 'opencode.svg'; protected $api_endpoint = 'https://opencode.ai/zen/v1'; protected $auth_type = 'none'; protected $default_model = 'gpt-5-nano'; protected $models = array( 'gpt-5-nano' => array('name' => 'GPT-5 Nano', 'context_window' => 128000), 'grok-code' => array('name' => 'Grok Code Fast 1', 'context_window' => 128000), 'glm-5-free' => array('name' => 'GLM-5 Free', 'context_window' => 128000), 'kimi-k2.5-free' => array('name' => 'Kimi K2.5 Free', 'context_window' => 128000), 'qwen3.6-plus-free' => array('name' => 'Qwen3.6 Plus Free', 'context_window' => 128000), 'minimax-m2.5-free' => array('name' => 'MiniMax M2.5 Free', 'context_window' => 128000), ); protected $context_window = 128000; protected $supports_streaming = true; public function __construct($provider_id = 'opencode_zen') { $this->id = $provider_id; if ($provider_id === 'opencode_zen_premium') { $this->name = 'OpenCode Zen (Premium)'; $this->auth_type = 'api_key'; } } private function get_cache_dir() { $dir = AIFileHandler::get_ai_base_dir('') . '/provider'; AIFileHandler::ensure_dir($dir, true); return $dir; } private function get_cache_file($provider_id) { return $this->get_cache_dir() . '/' . $provider_id . '.json.php'; } private function load_from_cache() { $file = $this->get_cache_file($this->id); $data = AIFileHandler::read($file); if (empty($data) || empty($data['fetched_at']) || empty($data['models'])) { return null; } if (time() - intval($data['fetched_at']) > 86400) { return null; } return $data['models']; } private function save_filtered_cache($provider_id, array $models, $timestamp) { $file = $this->get_cache_file($provider_id); AIFileHandler::write($file, array( 'fetched_at' => $timestamp, 'models' => $models )); } private function fetch_and_cache_all() { $url = rtrim($this->api_endpoint, '/') . '/models'; $ch = curl_init($url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_TIMEOUT, 10); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5); $response = curl_exec($ch); $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch); if ($response === false || $http_code !== 200) { return null; } $data = json_decode($response, true); if (empty($data) || !is_array($data)) { return null; } $raw_models = array(); if (!empty($data['data']) && is_array($data['data'])) { $raw_models = $data['data']; } elseif (!empty($data['models']) && is_array($data['models'])) { $raw_models = $data['models']; } if (empty($raw_models)) { return null; } $all_models = array(); foreach ($raw_models as $model) { if (empty($model['id'])) { continue; } $mid = $model['id']; $all_models[$mid] = array( 'name' => !empty($model['name']) ? $model['name'] : $mid, 'context_window' => !empty($model['context_window']) ? intval($model['context_window']) : $this->context_window ); } $free_models = array(); $premium_models = array(); foreach ($all_models as $id => $info) { if (strpos($id, 'free') !== false) { $free_models[$id] = $info; } else { $premium_models[$id] = $info; } } $timestamp = time(); $this->save_filtered_cache('opencode_zen', $free_models, $timestamp); $this->save_filtered_cache('opencode_zen_premium', $premium_models, $timestamp); return $all_models; } private function get_fallback_models() { $filtered = array(); foreach ($this->models as $id => $info) { if ($this->id === 'opencode_zen' && strpos($id, 'free') !== false) { $filtered[$id] = $info; } elseif ($this->id === 'opencode_zen_premium' && strpos($id, 'free') === false) { $filtered[$id] = $info; } } return $filtered; } public function get_supported_models() { $cached = $this->load_from_cache(); if ($cached !== null) { return $cached; } $all_models = $this->fetch_and_cache_all(); if ($all_models !== null) { $filtered = array(); foreach ($all_models as $id => $info) { if ($this->id === 'opencode_zen' && strpos($id, 'free') !== false) { $filtered[$id] = $info; } elseif ($this->id === 'opencode_zen_premium' && strpos($id, 'free') === false) { $filtered[$id] = $info; } } return $filtered; } return $this->get_fallback_models(); } public function get_default_model() { $models = $this->get_supported_models(); if (!empty($models[$this->default_model])) { return $this->default_model; } if (!empty($models)) { return array_key_first($models); } return $this->default_model; } } class MiniMaxProvider extends BaseAIProvider { protected $id = 'minimax'; protected $name = 'MiniMax'; protected $logo = 'minimax.svg'; protected $api_endpoint = 'https://api.minimax.chat/v1'; protected $auth_type = 'api_key'; protected $default_model = 'MiniMax-Text-01'; protected $models = array( 'MiniMax-Text-01' => array('name' => 'MiniMax-Text-01', 'context_window' => 1048576), 'MiniMax-M1' => array('name' => 'MiniMax-M1', 'context_window' => 1048576) ); protected $context_window = 1048576; protected $supports_streaming = true; } class CustomProvider extends BaseAIProvider { protected $id = 'custom'; protected $name = 'Custom Provider'; protected $logo = 'custom.svg'; protected $api_endpoint = ''; protected $auth_type = 'api_key'; protected $default_model = ''; protected $models = array(); protected $context_window = 128000; protected $supports_streaming = true; protected $custom_config = array(); public function __construct($base_url = '', $id = 'custom', $config = array()) { $this->id = $id; $this->api_endpoint = rtrim($base_url, '/'); $this->custom_config = $config; if(!empty($config['models'])){ $this->models = $config['models']; $this->default_model = array_key_first($config['models']); } } public function validate_config(array $config) { $errors = array(); if (empty($config['base_url'])) { $errors[] = 'Base URL is required'; } return $errors; } public function get_chat_url() { return rtrim($this->api_endpoint, '/') . '/chat/completions'; } }