✨ add openrouter AI provider support with comprehensive model list

Add OpenRouterEngine class and integrate it into the configuration
system. OpenRouter provides access to 300+ AI models through a
unified API, expanding model availability for commit message
generation beyond existing providers.

src/commands/config.ts

@@ -132,7 +132,339 @@ export const MODEL_LIST = {
     'mistral-moderation-2411',
     'mistral-moderation-latest'
   ],
-  deepseek: ['deepseek-chat', 'deepseek-reasoner']
+
+  deepseek: ['deepseek-chat', 'deepseek-reasoner'],
+
+  // OpenRouter available models
+  // input_modalities: 'text'
+  // output_modalities: 'text'
+  // https://openrouter.ai/api/v1/models
+  openrouter: [
+    'openai/gpt-4o-mini', // used by default
+    '01-ai/yi-large',
+    'aetherwiing/mn-starcannon-12b',
+    'agentica-org/deepcoder-14b-preview:free',
+    'ai21/jamba-1.6-large',
+    'ai21/jamba-1.6-mini',
+    'aion-labs/aion-1.0',
+    'aion-labs/aion-1.0-mini',
+    'aion-labs/aion-rp-llama-3.1-8b',
+    'alfredpros/codellama-7b-instruct-solidity',
+    'all-hands/openhands-lm-32b-v0.1',
+    'alpindale/goliath-120b',
+    'alpindale/magnum-72b',
+    'amazon/nova-lite-v1',
+    'amazon/nova-micro-v1',
+    'amazon/nova-pro-v1',
+    'anthracite-org/magnum-v2-72b',
+    'anthracite-org/magnum-v4-72b',
+    'anthropic/claude-2',
+    'anthropic/claude-2.0',
+    'anthropic/claude-2.0:beta',
+    'anthropic/claude-2.1',
+    'anthropic/claude-2.1:beta',
+    'anthropic/claude-2:beta',
+    'anthropic/claude-3-haiku',
+    'anthropic/claude-3-haiku:beta',
+    'anthropic/claude-3-opus',
+    'anthropic/claude-3-opus:beta',
+    'anthropic/claude-3-sonnet',
+    'anthropic/claude-3-sonnet:beta',
+    'anthropic/claude-3.5-haiku',
+    'anthropic/claude-3.5-haiku-20241022',
+    'anthropic/claude-3.5-haiku-20241022:beta',
+    'anthropic/claude-3.5-haiku:beta',
+    'anthropic/claude-3.5-sonnet',
+    'anthropic/claude-3.5-sonnet-20240620',
+    'anthropic/claude-3.5-sonnet-20240620:beta',
+    'anthropic/claude-3.5-sonnet:beta',
+    'anthropic/claude-3.7-sonnet',
+    'anthropic/claude-3.7-sonnet:beta',
+    'anthropic/claude-3.7-sonnet:thinking',
+    'anthropic/claude-opus-4',
+    'anthropic/claude-sonnet-4',
+    'arcee-ai/arcee-blitz',
+    'arcee-ai/caller-large',
+    'arcee-ai/coder-large',
+    'arcee-ai/maestro-reasoning',
+    'arcee-ai/spotlight',
+    'arcee-ai/virtuoso-large',
+    'arcee-ai/virtuoso-medium-v2',
+    'arliai/qwq-32b-arliai-rpr-v1:free',
+    'cognitivecomputations/dolphin-mixtral-8x22b',
+    'cognitivecomputations/dolphin3.0-mistral-24b:free',
+    'cognitivecomputations/dolphin3.0-r1-mistral-24b:free',
+    'cohere/command',
+    'cohere/command-a',
+    'cohere/command-r',
+    'cohere/command-r-03-2024',
+    'cohere/command-r-08-2024',
+    'cohere/command-r-plus',
+    'cohere/command-r-plus-04-2024',
+    'cohere/command-r-plus-08-2024',
+    'cohere/command-r7b-12-2024',
+    'deepseek/deepseek-chat',
+    'deepseek/deepseek-chat-v3-0324',
+    'deepseek/deepseek-chat-v3-0324:free',
+    'deepseek/deepseek-chat:free',
+    'deepseek/deepseek-prover-v2',
+    'deepseek/deepseek-prover-v2:free',
+    'deepseek/deepseek-r1',
+    'deepseek/deepseek-r1-0528',
+    'deepseek/deepseek-r1-0528-qwen3-8b',
+    'deepseek/deepseek-r1-0528-qwen3-8b:free',
+    'deepseek/deepseek-r1-0528:free',
+    'deepseek/deepseek-r1-distill-llama-70b',
+    'deepseek/deepseek-r1-distill-llama-70b:free',
+    'deepseek/deepseek-r1-distill-llama-8b',
+    'deepseek/deepseek-r1-distill-qwen-1.5b',
+    'deepseek/deepseek-r1-distill-qwen-14b',
+    'deepseek/deepseek-r1-distill-qwen-14b:free',
+    'deepseek/deepseek-r1-distill-qwen-32b',
+    'deepseek/deepseek-r1-distill-qwen-32b:free',
+    'deepseek/deepseek-r1-distill-qwen-7b',
+    'deepseek/deepseek-r1-zero:free',
+    'deepseek/deepseek-r1:free',
+    'deepseek/deepseek-v3-base:free',
+    'eleutherai/llemma_7b',
+    'eva-unit-01/eva-llama-3.33-70b',
+    'eva-unit-01/eva-qwen-2.5-32b',
+    'eva-unit-01/eva-qwen-2.5-72b',
+    'featherless/qwerky-72b:free',
+    'google/gemini-2.0-flash-001',
+    'google/gemini-2.0-flash-exp:free',
+    'google/gemini-2.0-flash-lite-001',
+    'google/gemini-2.5-flash-preview',
+    'google/gemini-2.5-flash-preview-05-20',
+    'google/gemini-2.5-flash-preview-05-20:thinking',
+    'google/gemini-2.5-flash-preview:thinking',
+    'google/gemini-2.5-pro-exp-03-25',
+    'google/gemini-2.5-pro-preview',
+    'google/gemini-2.5-pro-preview-05-06',
+    'google/gemini-flash-1.5',
+    'google/gemini-flash-1.5-8b',
+    'google/gemini-pro-1.5',
+    'google/gemma-2-27b-it',
+    'google/gemma-2-9b-it',
+    'google/gemma-2-9b-it:free',
+    'google/gemma-3-12b-it',
+    'google/gemma-3-12b-it:free',
+    'google/gemma-3-1b-it:free',
+    'google/gemma-3-27b-it',
+    'google/gemma-3-27b-it:free',
+    'google/gemma-3-4b-it',
+    'google/gemma-3-4b-it:free',
+    'google/gemma-3n-e4b-it:free',
+    'gryphe/mythomax-l2-13b',
+    'inception/mercury-coder-small-beta',
+    'infermatic/mn-inferor-12b',
+    'inflection/inflection-3-pi',
+    'inflection/inflection-3-productivity',
+    'liquid/lfm-3b',
+    'liquid/lfm-40b',
+    'liquid/lfm-7b',
+    'mancer/weaver',
+    'meta-llama/llama-2-70b-chat',
+    'meta-llama/llama-3-70b-instruct',
+    'meta-llama/llama-3-8b-instruct',
+    'meta-llama/llama-3.1-405b',
+    'meta-llama/llama-3.1-405b-instruct',
+    'meta-llama/llama-3.1-405b:free',
+    'meta-llama/llama-3.1-70b-instruct',
+    'meta-llama/llama-3.1-8b-instruct',
+    'meta-llama/llama-3.1-8b-instruct:free',
+    'meta-llama/llama-3.2-11b-vision-instruct',
+    'meta-llama/llama-3.2-11b-vision-instruct:free',
+    'meta-llama/llama-3.2-1b-instruct',
+    'meta-llama/llama-3.2-1b-instruct:free',
+    'meta-llama/llama-3.2-3b-instruct',
+    'meta-llama/llama-3.2-3b-instruct:free',
+    'meta-llama/llama-3.2-90b-vision-instruct',
+    'meta-llama/llama-3.3-70b-instruct',
+    'meta-llama/llama-3.3-70b-instruct:free',
+    'meta-llama/llama-3.3-8b-instruct:free',
+    'meta-llama/llama-4-maverick',
+    'meta-llama/llama-4-maverick:free',
+    'meta-llama/llama-4-scout',
+    'meta-llama/llama-4-scout:free',
+    'meta-llama/llama-guard-2-8b',
+    'meta-llama/llama-guard-3-8b',
+    'meta-llama/llama-guard-4-12b',
+    'microsoft/mai-ds-r1:free',
+    'microsoft/phi-3-medium-128k-instruct',
+    'microsoft/phi-3-mini-128k-instruct',
+    'microsoft/phi-3.5-mini-128k-instruct',
+    'microsoft/phi-4',
+    'microsoft/phi-4-multimodal-instruct',
+    'microsoft/phi-4-reasoning-plus',
+    'microsoft/phi-4-reasoning-plus:free',
+    'microsoft/phi-4-reasoning:free',
+    'microsoft/wizardlm-2-8x22b',
+    'minimax/minimax-01',
+    'mistralai/codestral-2501',
+    'mistralai/devstral-small',
+    'mistralai/devstral-small:free',
+    'mistralai/magistral-medium-2506',
+    'mistralai/magistral-medium-2506:thinking',
+    'mistralai/magistral-small-2506',
+    'mistralai/ministral-3b',
+    'mistralai/ministral-8b',
+    'mistralai/mistral-7b-instruct',
+    'mistralai/mistral-7b-instruct-v0.1',
+    'mistralai/mistral-7b-instruct-v0.2',
+    'mistralai/mistral-7b-instruct-v0.3',
+    'mistralai/mistral-7b-instruct:free',
+    'mistralai/mistral-large',
+    'mistralai/mistral-large-2407',
+    'mistralai/mistral-large-2411',
+    'mistralai/mistral-medium',
+    'mistralai/mistral-medium-3',
+    'mistralai/mistral-nemo',
+    'mistralai/mistral-nemo:free',
+    'mistralai/mistral-saba',
+    'mistralai/mistral-small',
+    'mistralai/mistral-small-24b-instruct-2501',
+    'mistralai/mistral-small-24b-instruct-2501:free',
+    'mistralai/mistral-small-3.1-24b-instruct',
+    'mistralai/mistral-small-3.1-24b-instruct:free',
+    'mistralai/mistral-tiny',
+    'mistralai/mixtral-8x22b-instruct',
+    'mistralai/mixtral-8x7b-instruct',
+    'mistralai/pixtral-12b',
+    'mistralai/pixtral-large-2411',
+    'moonshotai/kimi-vl-a3b-thinking:free',
+    'moonshotai/moonlight-16b-a3b-instruct:free',
+    'neversleep/llama-3-lumimaid-70b',
+    'neversleep/llama-3-lumimaid-8b',
+    'neversleep/llama-3.1-lumimaid-70b',
+    'neversleep/llama-3.1-lumimaid-8b',
+    'neversleep/noromaid-20b',
+    'nothingiisreal/mn-celeste-12b',
+    'nousresearch/deephermes-3-llama-3-8b-preview:free',
+    'nousresearch/deephermes-3-mistral-24b-preview:free',
+    'nousresearch/hermes-2-pro-llama-3-8b',
+    'nousresearch/hermes-3-llama-3.1-405b',
+    'nousresearch/hermes-3-llama-3.1-70b',
+    'nousresearch/nous-hermes-2-mixtral-8x7b-dpo',
+    'nvidia/llama-3.1-nemotron-70b-instruct',
+    'nvidia/llama-3.1-nemotron-ultra-253b-v1',
+    'nvidia/llama-3.1-nemotron-ultra-253b-v1:free',
+    'nvidia/llama-3.3-nemotron-super-49b-v1',
+    'nvidia/llama-3.3-nemotron-super-49b-v1:free',
+    'open-r1/olympiccoder-32b:free',
+    'openai/chatgpt-4o-latest',
+    'openai/codex-mini',
+    'openai/gpt-3.5-turbo',
+    'openai/gpt-3.5-turbo-0125',
+    'openai/gpt-3.5-turbo-0613',
+    'openai/gpt-3.5-turbo-1106',
+    'openai/gpt-3.5-turbo-16k',
+    'openai/gpt-3.5-turbo-instruct',
+    'openai/gpt-4',
+    'openai/gpt-4-0314',
+    'openai/gpt-4-1106-preview',
+    'openai/gpt-4-turbo',
+    'openai/gpt-4-turbo-preview',
+    'openai/gpt-4.1',
+    'openai/gpt-4.1-mini',
+    'openai/gpt-4.1-nano',
+    'openai/gpt-4.5-preview',
+    'openai/gpt-4o',
+    'openai/gpt-4o-2024-05-13',
+    'openai/gpt-4o-2024-08-06',
+    'openai/gpt-4o-2024-11-20',
+    'openai/gpt-4o-mini-2024-07-18',
+    'openai/gpt-4o-mini-search-preview',
+    'openai/gpt-4o-search-preview',
+    'openai/gpt-4o:extended',
+    'openai/o1',
+    'openai/o1-mini',
+    'openai/o1-mini-2024-09-12',
+    'openai/o1-preview',
+    'openai/o1-preview-2024-09-12',
+    'openai/o1-pro',
+    'openai/o3',
+    'openai/o3-mini',
+    'openai/o3-mini-high',
+    'openai/o3-pro',
+    'openai/o4-mini',
+    'openai/o4-mini-high',
+    'opengvlab/internvl3-14b:free',
+    'opengvlab/internvl3-2b:free',
+    'openrouter/auto',
+    'perplexity/llama-3.1-sonar-large-128k-online',
+    'perplexity/llama-3.1-sonar-small-128k-online',
+    'perplexity/r1-1776',
+    'perplexity/sonar',
+    'perplexity/sonar-deep-research',
+    'perplexity/sonar-pro',
+    'perplexity/sonar-reasoning',
+    'perplexity/sonar-reasoning-pro',
+    'pygmalionai/mythalion-13b',
+    'qwen/qwen-2-72b-instruct',
+    'qwen/qwen-2.5-72b-instruct',
+    'qwen/qwen-2.5-72b-instruct:free',
+    'qwen/qwen-2.5-7b-instruct',
+    'qwen/qwen-2.5-7b-instruct:free',
+    'qwen/qwen-2.5-coder-32b-instruct',
+    'qwen/qwen-2.5-coder-32b-instruct:free',
+    'qwen/qwen-2.5-vl-7b-instruct',
+    'qwen/qwen-2.5-vl-7b-instruct:free',
+    'qwen/qwen-max',
+    'qwen/qwen-plus',
+    'qwen/qwen-turbo',
+    'qwen/qwen-vl-max',
+    'qwen/qwen-vl-plus',
+    'qwen/qwen2.5-vl-32b-instruct',
+    'qwen/qwen2.5-vl-32b-instruct:free',
+    'qwen/qwen2.5-vl-3b-instruct:free',
+    'qwen/qwen2.5-vl-72b-instruct',
+    'qwen/qwen2.5-vl-72b-instruct:free',
+    'qwen/qwen3-14b',
+    'qwen/qwen3-14b:free',
+    'qwen/qwen3-235b-a22b',
+    'qwen/qwen3-235b-a22b:free',
+    'qwen/qwen3-30b-a3b',
+    'qwen/qwen3-30b-a3b:free',
+    'qwen/qwen3-32b',
+    'qwen/qwen3-32b:free',
+    'qwen/qwen3-8b',
+    'qwen/qwen3-8b:free',
+    'qwen/qwq-32b',
+    'qwen/qwq-32b-preview',
+    'qwen/qwq-32b:free',
+    'raifle/sorcererlm-8x22b',
+    'rekaai/reka-flash-3:free',
+    'sao10k/fimbulvetr-11b-v2',
+    'sao10k/l3-euryale-70b',
+    'sao10k/l3-lunaris-8b',
+    'sao10k/l3.1-euryale-70b',
+    'sao10k/l3.3-euryale-70b',
+    'sarvamai/sarvam-m:free',
+    'scb10x/llama3.1-typhoon2-70b-instruct',
+    'sentientagi/dobby-mini-unhinged-plus-llama-3.1-8b',
+    'shisa-ai/shisa-v2-llama3.3-70b:free',
+    'sophosympatheia/midnight-rose-70b',
+    'thedrummer/anubis-pro-105b-v1',
+    'thedrummer/rocinante-12b',
+    'thedrummer/skyfall-36b-v2',
+    'thedrummer/unslopnemo-12b',
+    'thedrummer/valkyrie-49b-v1',
+    'thudm/glm-4-32b',
+    'thudm/glm-4-32b:free',
+    'thudm/glm-z1-32b',
+    'thudm/glm-z1-32b:free',
+    'thudm/glm-z1-rumination-32b',
+    'tngtech/deepseek-r1t-chimera:free',
+    'undi95/remm-slerp-l2-13b',
+    'undi95/toppy-m-7b',
+    'x-ai/grok-2-1212',
+    'x-ai/grok-2-vision-1212',
+    'x-ai/grok-3-beta',
+    'x-ai/grok-3-mini-beta',
+    'x-ai/grok-beta',
+    'x-ai/grok-vision-beta'
+  ]
 };
 
 const getDefaultModel = (provider: string | undefined): string => {
@@ -151,6 +483,8 @@ const getDefaultModel = (provider: string | undefined): string => {
       return MODEL_LIST.mistral[0];
     case 'deepseek':
       return MODEL_LIST.deepseek[0];
+    case 'openrouter':
+      return MODEL_LIST.openrouter[0];
     default:
       return MODEL_LIST.openai[0];
   }
@@ -340,7 +674,8 @@ export const configValidators = {
         'test',
         'flowise',
         'groq',
-        'deepseek'
+        'deepseek',
+        'openrouter'
       ].includes(value) || value.startsWith('ollama'),
       `${value} is not supported yet, use 'ollama', 'mlx', 'anthropic', 'azure', 'gemini', 'flowise', 'mistral', 'deepseek' or 'openai' (default)`
     );
@@ -390,7 +725,8 @@ export enum OCO_AI_PROVIDER_ENUM {
   GROQ = 'groq',
   MISTRAL = 'mistral',
   MLX = 'mlx',
-  DEEPSEEK = 'deepseek'
+  DEEPSEEK = 'deepseek',
+  OPENROUTER = 'openrouter'
 }
 
 export type ConfigType = {
@@ -658,7 +994,8 @@ function getConfigKeyDetails(key) {
       };
     case CONFIG_KEYS.OCO_DESCRIPTION:
       return {
-        description: 'Postface a message with ~3 sentences description of the changes',
+        description:
+          'Postface a message with ~3 sentences description of the changes',
         values: ['true', 'false']
       };
     case CONFIG_KEYS.OCO_EMOJI:
@@ -668,9 +1005,10 @@ function getConfigKeyDetails(key) {
       };
     case CONFIG_KEYS.OCO_WHY:
       return {
-        description: 'Output a short description of why the changes were done after the commit message (default: false)',
+        description:
+          'Output a short description of why the changes were done after the commit message (default: false)',
         values: ['true', 'false']
-      }
+      };
     case CONFIG_KEYS.OCO_OMIT_SCOPE:
       return {
         description: 'Do not include a scope in the commit message',
@@ -678,7 +1016,8 @@ function getConfigKeyDetails(key) {
       };
     case CONFIG_KEYS.OCO_GITPUSH:
       return {
-        description: 'Push to git after commit (deprecated). If false, oco will exit after committing',
+        description:
+          'Push to git after commit (deprecated). If false, oco will exit after committing',
         values: ['true', 'false']
       };
     case CONFIG_KEYS.OCO_TOKENS_MAX_INPUT:
@@ -698,13 +1037,14 @@ function getConfigKeyDetails(key) {
       };
     case CONFIG_KEYS.OCO_API_URL:
       return {
-        description: 'Custom API URL - may be used to set proxy path to OpenAI API',
+        description:
+          'Custom API URL - may be used to set proxy path to OpenAI API',
         values: ["URL string (must start with 'http://' or 'https://')"]
       };
     case CONFIG_KEYS.OCO_MESSAGE_TEMPLATE_PLACEHOLDER:
       return {
         description: 'Message template placeholder',
-        values: ["String (must start with $)"]
+        values: ['String (must start with $)']
       };
     default:
       return {
@@ -728,7 +1068,6 @@ function printConfigKeyHelp(param) {
     defaultValue = DEFAULT_CONFIG[param];
   }
 
-
   console.log(chalk.bold(`\n${param}:`));
   console.log(chalk.gray(`  Description: ${desc}`));
   if (defaultValue !== undefined) {
@@ -742,14 +1081,14 @@ function printConfigKeyHelp(param) {
 
   if (Array.isArray(details.values)) {
     console.log(chalk.gray('  Accepted values:'));
-    details.values.forEach(value => {
+    details.values.forEach((value) => {
       console.log(chalk.gray(`    - ${value}`));
     });
   } else {
     console.log(chalk.gray('  Accepted values by provider:'));
     Object.entries(details.values).forEach(([provider, values]) => {
       console.log(chalk.gray(`    ${provider}:`));
-      (values as string[]).forEach(value => {
+      (values as string[]).forEach((value) => {
         console.log(chalk.gray(`      - ${value}`));
       });
     });
@@ -765,7 +1104,7 @@ function printAllConfigHelp() {
     if (key in DEFAULT_CONFIG) {
       defaultValue = DEFAULT_CONFIG[key];
     }
-    
+
     console.log(chalk.bold(`\n${key}:`));
     console.log(chalk.gray(`  Description: ${details.description}`));
     if (defaultValue !== undefined) {
@@ -776,7 +1115,11 @@ function printAllConfigHelp() {
       }
     }
   }
-  console.log(chalk.yellow('\nUse "oco config describe [PARAMETER]" to see accepted values and more details for a specific config parameter.'));
+  console.log(
+    chalk.yellow(
+      '\nUse "oco config describe [PARAMETER]" to see accepted values and more details for a specific config parameter.'
+    )
+  );
 }
 
 export const configCommand = command(

src/engine/openrouter.ts

@@ -0,0 +1,49 @@
+import OpenAI from 'openai';
+import { AiEngine, AiEngineConfig } from './Engine';
+import axios, { AxiosInstance } from 'axios';
+import { removeContentTags } from '../utils/removeContentTags';
+
+interface OpenRouterConfig extends AiEngineConfig {}
+
+export class OpenRouterEngine implements AiEngine {
+  client: AxiosInstance;
+
+  constructor(public config: OpenRouterConfig) {
+    this.client = axios.create({
+      baseURL: 'https://openrouter.ai/api/v1/chat/completions',
+      headers: {
+        Authorization: `Bearer ${config.apiKey}`,
+        'HTTP-Referer': 'https://github.com/di-sukharev/opencommit',
+        'X-Title': 'OpenCommit',
+        'Content-Type': 'application/json'
+      }
+    });
+  }
+
+  public generateCommitMessage = async (
+    messages: Array<OpenAI.Chat.Completions.ChatCompletionMessageParam>
+  ): Promise<string | null> => {
+    try {
+      const response = await this.client.post('', {
+        model: this.config.model,
+        messages
+      });
+
+      const message = response.data.choices[0].message;
+      let content = message?.content;
+      return removeContentTags(content, 'think');
+    } catch (error) {
+      const err = error as Error;
+      if (
+        axios.isAxiosError<{ error?: { message: string } }>(error) &&
+        error.response?.status === 401
+      ) {
+        const openRouterError = error.response.data.error;
+
+        if (openRouterError) throw new Error(openRouterError.message);
+      }
+
+      throw err;
+    }
+  };
+}

src/utils/engine.ts

@@ -11,14 +11,15 @@ import { TestAi, TestMockType } from '../engine/testAi';
 import { GroqEngine } from '../engine/groq';
 import { MLXEngine } from '../engine/mlx';
 import { DeepseekEngine } from '../engine/deepseek';
+import { OpenRouterEngine } from '../engine/openrouter';
 
 export function parseCustomHeaders(headers: any): Record<string, string> {
   let parsedHeaders = {};
-  
+
   if (!headers) {
     return parsedHeaders;
   }
-  
+
   try {
     if (typeof headers === 'object' && !Array.isArray(headers)) {
       parsedHeaders = headers;
@@ -26,9 +27,11 @@ export function parseCustomHeaders(headers: any): Record<string, string> {
       parsedHeaders = JSON.parse(headers);
     }
   } catch (error) {
-    console.warn('Invalid OCO_API_CUSTOM_HEADERS format, ignoring custom headers');
+    console.warn(
+      'Invalid OCO_API_CUSTOM_HEADERS format, ignoring custom headers'
+    );
   }
-  
+
   return parsedHeaders;
 }
 
@@ -78,6 +81,9 @@ export function getEngine(): AiEngine {
     case OCO_AI_PROVIDER_ENUM.DEEPSEEK:
       return new DeepseekEngine(DEFAULT_CONFIG);
 
+    case OCO_AI_PROVIDER_ENUM.OPENROUTER:
+      return new OpenRouterEngine(DEFAULT_CONFIG);
+
     default:
       return new OpenAiEngine(DEFAULT_CONFIG);
   }