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openrouter.php
185 lines
| 1 | <?php |
| 2 | |
| 3 | class Meow_MWAI_Engines_OpenRouter extends Meow_MWAI_Engines_OpenAI |
| 4 | { |
| 5 | |
| 6 | public function __construct( $core, $env ) |
| 7 | { |
| 8 | parent::__construct( $core, $env ); |
| 9 | } |
| 10 | |
| 11 | protected function set_environment() { |
| 12 | $env = $this->env; |
| 13 | $this->apiKey = $env['apikey']; |
| 14 | } |
| 15 | |
| 16 | protected function build_url( $query, $endpoint = null ) { |
| 17 | $endpoint = apply_filters( 'mwai_openrouter_endpoint', 'https://openrouter.ai/api/v1', $this->env ); |
| 18 | $url = parent::build_url( $query, $endpoint ); |
| 19 | return $url; |
| 20 | } |
| 21 | |
| 22 | protected function build_headers( $query ) { |
| 23 | $site_url = apply_filters( 'mwai_openrouter_site_url', get_site_url(), $query ); |
| 24 | $site_name = apply_filters( 'mwai_openrouter_site_name', get_bloginfo( 'name' ), $query ); |
| 25 | $headers = array( |
| 26 | 'Content-Type' => 'application/json', |
| 27 | 'Authorization' => 'Bearer ' . $this->apiKey, |
| 28 | 'HTTP-Referer' => $site_url, |
| 29 | 'X-Title' => $site_name, |
| 30 | 'User-Agent' => 'AI Engine', |
| 31 | ); |
| 32 | return $headers; |
| 33 | } |
| 34 | |
| 35 | protected function build_body( $query, $streamCallback = null, $extra = null ) { |
| 36 | $body = parent::build_body( $query, $streamCallback, $extra ); |
| 37 | // https://openrouter.ai/docs/transforms |
| 38 | $body['transforms'] = ['middle-out']; |
| 39 | return $body; |
| 40 | } |
| 41 | |
| 42 | private function truncate_float( $number, $precision = 4 ) { |
| 43 | $factor = pow( 10, $precision ); |
| 44 | return floor( $number * $factor ) / $factor; |
| 45 | } |
| 46 | |
| 47 | protected function get_service_name() { |
| 48 | return "OpenRouter"; |
| 49 | } |
| 50 | |
| 51 | public function get_models() { |
| 52 | return $this->core->get_engine_models( 'openrouter' ); |
| 53 | } |
| 54 | |
| 55 | public function handle_tokens_usage( $reply, $query, $returned_model, |
| 56 | $returned_in_tokens, $returned_out_tokens, $returned_price = null ) { |
| 57 | |
| 58 | // If streaming is not enabled, we probably have all the data we need |
| 59 | $everything_is_set = !is_null( $returned_model ) && !is_null( $returned_in_tokens ) && !is_null( $returned_out_tokens ); |
| 60 | |
| 61 | // Clean up the data |
| 62 | $returned_in_tokens = !is_null( $returned_in_tokens ) ? |
| 63 | $returned_in_tokens : $reply->get_in_tokens( $query ); |
| 64 | $returned_out_tokens = !is_null( $returned_out_tokens ) ? |
| 65 | $returned_out_tokens : $reply->get_out_tokens(); |
| 66 | $returned_price = !is_null( $returned_price ) ? |
| 67 | $returned_price : $reply->get_price(); |
| 68 | |
| 69 | // If everything is not set, we can make a request to get the usage data |
| 70 | if ( !empty( $reply->id ) && !$everything_is_set ) { |
| 71 | $url = 'https://openrouter.ai/api/v1/generation?id=' . $reply->id; |
| 72 | try { |
| 73 | $ch = curl_init(); |
| 74 | curl_setopt( $ch, CURLOPT_URL, $url ); |
| 75 | curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true ); |
| 76 | curl_setopt( $ch, CURLOPT_HTTPHEADER, [ 'Authorization: Bearer ' . $this->apiKey ] ); |
| 77 | curl_setopt( $ch, CURLOPT_USERAGENT, 'AI Engine' ); |
| 78 | $res = curl_exec( $ch ); |
| 79 | curl_close( $ch ); |
| 80 | $res = json_decode( $res, true ); |
| 81 | if ( isset( $res['data'] ) ) { |
| 82 | $data = $res['data']; |
| 83 | $returned_model = $data['model']; |
| 84 | $returned_in_tokens = $data['tokens_prompt']; |
| 85 | $returned_out_tokens = $data['tokens_completion']; |
| 86 | $returned_price = $data['total_cost']; |
| 87 | } |
| 88 | } |
| 89 | catch ( Exception $e ) { |
| 90 | Meow_MWAI_Logging::error( 'OpenRouter: ' . $e->getMessage() ); |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | // Record the usage |
| 95 | $usage = $this->core->record_tokens_usage( |
| 96 | $returned_model, |
| 97 | $returned_in_tokens, |
| 98 | $returned_out_tokens, |
| 99 | $returned_price |
| 100 | ); |
| 101 | |
| 102 | // Set the usage in the reply |
| 103 | $reply->set_usage( $usage ); |
| 104 | } |
| 105 | |
| 106 | public function get_price( Meow_MWAI_Query_Base $query, Meow_MWAI_Reply $reply ) { |
| 107 | $price = $reply->get_price(); |
| 108 | if ( is_null( $price ) ) { |
| 109 | $price = parent::get_price( $query, $reply ); |
| 110 | } |
| 111 | return $price; |
| 112 | } |
| 113 | |
| 114 | public function retrieve_models() { |
| 115 | $url = 'https://openrouter.ai/api/v1/models'; |
| 116 | $response = wp_remote_get( $url ); |
| 117 | if ( is_wp_error( $response ) ) { |
| 118 | throw new Exception( 'AI Engine: ' . $response->get_error_message() ); |
| 119 | } |
| 120 | $body = json_decode( $response['body'], true ); |
| 121 | $models = array(); |
| 122 | foreach ( $body['data'] as $model ) { |
| 123 | $family = "n/a"; |
| 124 | $maxCompletionTokens = 4096; |
| 125 | $maxContextualTokens = 8096; |
| 126 | $priceIn = 0; |
| 127 | $priceOut = 0; |
| 128 | $family = explode( '/', $model['id'] )[0]; |
| 129 | if ( isset( $model['top_provider']['max_completion_tokens'] ) ) { |
| 130 | $maxCompletionTokens = (int)$model['top_provider']['max_completion_tokens']; |
| 131 | } |
| 132 | if ( isset( $model['context_length'] ) ) { |
| 133 | $maxContextualTokens = (int)$model['context_length']; |
| 134 | } |
| 135 | if ( isset( $model['pricing']['prompt'] ) && $model['pricing']['prompt'] > 0 ) { |
| 136 | $priceIn = floatval( $model['pricing']['prompt'] ) * 1000; |
| 137 | $priceIn = $this->truncate_float( $priceIn ); |
| 138 | } |
| 139 | if ( isset( $model['pricing']['completion'] ) && $model['pricing']['completion'] > 0 ) { |
| 140 | $priceOut = floatval( $model['pricing']['completion'] ) * 1000; |
| 141 | $priceOut = $this->truncate_float( $priceOut ); |
| 142 | } |
| 143 | |
| 144 | $tags = [ 'core', 'chat' ]; |
| 145 | // If the name contains (beta), (alpha) or (preview), add 'preview' tag and remove from name |
| 146 | if ( preg_match( '/\((beta|alpha|preview)\)/i', $model['name'], $matches ) ) { |
| 147 | $tags[] = 'preview'; |
| 148 | $model['name'] = preg_replace( '/\((beta|alpha|preview)\)/i', '', $model['name'] ); |
| 149 | } |
| 150 | |
| 151 | // Vision Support |
| 152 | // Unfortunately, OpenRouter does not provide a way know if a model is vision or not |
| 153 | |
| 154 | // If the name includes 'Vision', add 'vision' tag |
| 155 | if ( preg_match( '/vision/i', $model['name'], $matches ) ) { |
| 156 | $tags[] = 'vision'; |
| 157 | } |
| 158 | // If the name includes 'gpt-4o', add 'vision' tag |
| 159 | else if ( preg_match( '/gpt-4o/i', $model['name'], $matches ) ) { |
| 160 | $tags[] = 'vision'; |
| 161 | } |
| 162 | // If the name includes 'flash', add 'vision' tag |
| 163 | else if ( preg_match( '/flash/i', $model['name'], $matches ) ) { |
| 164 | $tags[] = 'vision'; |
| 165 | } |
| 166 | |
| 167 | $models[] = array( |
| 168 | 'model' => $model['id'], |
| 169 | 'name' => trim( $model['name'] ), |
| 170 | 'family' => $family, |
| 171 | 'features' => ['completion'], |
| 172 | 'price' => array( |
| 173 | 'in' => $priceIn, |
| 174 | 'out' => $priceOut, |
| 175 | ), |
| 176 | 'type' => 'token', |
| 177 | 'unit' => 1 / 1000, |
| 178 | 'maxCompletionTokens' => $maxCompletionTokens, |
| 179 | 'maxContextualTokens' => $maxContextualTokens, |
| 180 | 'tags' => $tags |
| 181 | ); |
| 182 | } |
| 183 | return $models; |
| 184 | } |
| 185 | } |