55 lines
1.5 KiB
Markdown
55 lines
1.5 KiB
Markdown
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---
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title: Connecting to LLMs
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nav_order: 40
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has_children: true
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description: Aider can connect to most LLMs for AI pair programming.
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---
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# Aider can connect to most LLMs
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{: .no_toc }
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[](https://aider.chat/assets/llms.jpg)
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## Best models
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{: .no_toc }
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Aider works best with these models, which are skilled at editing code:
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- [Gemini 2.5 Pro](/docs/llms/gemini.html)
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- [DeepSeek R1 and V3](/docs/llms/deepseek.html)
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- [Claude 3.7 Sonnet](/docs/llms/anthropic.html)
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- [OpenAI o3, o4-mini and GPT-4.1](/docs/llms/openai.html)
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## Free models
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{: .no_toc }
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Aider works with a number of **free** API providers:
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- [OpenRouter offers free access to many models](https://openrouter.ai/models/?q=free), with limitations on daily usage.
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- Google's [Gemini 2.5 Pro Exp](/docs/llms/gemini.html) works very well with aider.
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## Local models
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{: .no_toc }
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Aider can work also with local models, for example using [Ollama](/docs/llms/ollama.html).
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It can also access
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local models that provide an
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[Open AI compatible API](/docs/llms/openai-compat.html).
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## Use a capable model
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{: .no_toc }
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Check
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[Aider's LLM leaderboards](https://aider.chat/docs/leaderboards/)
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to see which models work best with aider.
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Be aware that aider may not work well with less capable models.
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If you see the model returning code, but aider isn't able to edit your files
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and commit the changes...
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this is usually because the model isn't capable of properly
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returning "code edits".
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Models weaker than GPT 3.5 may have problems working well with aider.
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