Best models for Aider
The best model for Aider right now is GPT-5.6 Sol, with a 77.4 Artificial Analysis Coding Index; GPT-5.6 Terra (76.7) and Claude Fable 5 (76.5) follow. Aider works through git diffs and repo maps — long context helps on large repos, and its own benchmarks track closely with the Coding Index ordering.
Ranked by the Artificial Analysis Coding Index. Speed, context and price are shown per row — aider works through git diffs and repo maps — long context helps on large repos, and its own benchmarks track closely with the Coding Index ordering.
- 1
gpt-5.6-solReasoningToolsJSON+1$5.00/M · 1.1M ctx77.4Coding - 2gpt-5.6-terraReasoningToolsJSON+1$2.50/M · 1.1M ctx76.7Coding
- 3
claude-fable-5ReasoningToolsJSON+1$10.00/M · 1M ctx76.5Coding - 4
kimi-k3ReasoningToolsJSON+1$3.00/M · 1.0M ctx76.2Coding - 5gpt-5.5ReasoningToolsJSON+1$5.00/M · 1.1M ctx74.9Coding
- 6claude-opus-4.8ReasoningToolsJSON+1$5.00/M · 1M ctx74.3Coding
- 7claude-opus-4.7ReasoningToolsJSON+1$5.00/M · 1M ctx73.6Coding
- 8
grok-4.5ReasoningToolsJSON+1$2.00/M · 500K ctx72.4Coding - 9claude-sonnet-5ReasoningToolsJSON+1$2.00/M · 1M ctx71.5Coding
- 10gpt-5.6-lunaReasoningToolsJSON+1$1.00/M · 1.1M ctx71.4Coding
- 11Mmuse-spark-1.1ReasoningToolsJSON+2$1.25/M · 1.0M ctx71.3Coding
- 12gpt-5.4ReasoningToolsJSON+1$2.50/M · 1.1M ctx71.1Coding
- 13
gemini-3.5-flashReasoningToolsJSON+2$1.50/M · 1.0M ctx70.1Coding - 14gemini-3.6-flashReasoningToolsJSON+2$1.50/M · 1.0M ctx69.2Coding
- 15
glm-5.2ReasoningToolsJSON$0.818/M · 1.0M ctx68.8Coding - 16gemini-3.1-pro-previewReasoningToolsJSON+2$2.00/M · 1.0M ctx68.8Coding
- 17
qwen3.7-maxReasoningToolsJSON$1.48/M · 1M ctx66.0Coding - 18kimi-k2.6ReasoningToolsJSON+1$0.684/M · 262K ctx61.8Coding
- 19kimi-k2.7-codeReasoningToolsJSON+1$0.710/M · 262K ctx60.8Coding
- 20
mimo-v2.5-proReasoningToolsJSON$0.435/M · 1.1M ctx60.2Coding
Frequently asked
What is the best model for Aider?
GPT-5.6 Sol leads on the Coding Index (77.4) among models suited to Aider. Aider works through git diffs and repo maps — long context helps on large repos, and its own benchmarks track closely with the Coding Index ordering.
What's a cheaper model to use in Aider?
GPT-5.6 Terra (76.7 coding, $2.50/M) and Kimi K3 (76.2 coding, $3.00/M) give most of the leader's capability at a lower per-token price.