Best model for your job # Best AI model for debugging > For debugging, GPT-6 Astra scores highest on the current data (72.9), weighting coding 50%, reasoning 30%, agentic & tool use 20%. The cheapest model in the t - Canonical page: https://noometry.com/best/for/debugging - Last updated: 2026-10-10 - Title: Best AI model for debugging (October 2026) | Noometry For debugging, GPT-6 Astra scores highest on the current data (72.9), weighting coding 50%, reasoning 30%, agentic & tool use 20%. The cheapest model in the top 10 is Gemini 3.8 Flash at $0.75 / $3.75 per million tokens. Last verified October 10, 2026 Weights: [Coding](https://noometry.com/best/coding) 50%, [Reasoning](https://noometry.com/best/reasoning) 30%, [Agentic & Tool Use](https://noometry.com/best/agentic) 20%. Debugging rewards reading unfamiliar code and reasoning about cause and effect. Best AI model for debugging | # | Model | Provider | Fit | Coding | Reasoning | Agentic & Tool Use | Input $/M | Output $/M | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | [GPT-6 Astra](https://noometry.com/models/gpt-6-astra) | OpenAI | **72.9** | 73.7 | 85.1 | 52.9 | $10 | $50 | | 2 | [Claude Fable 5.1](https://noometry.com/models/claude-fable-5-1) | Anthropic | **70.5** | 74.7 | 76.7 | 50.7 | $10 | $50 | | 3 | [Claude Fable 5](https://noometry.com/models/claude-fable-5) | Anthropic | **69.2** | 70.6 | 76.8 | 54.0 | $10 | $50 | | 4 | [Claude Opus 5.5](https://noometry.com/models/claude-opus-5-5) | Anthropic | **69.1** | 71.9 | 80.2 | 45.3 | $4 | $20 | | 5 | [Claude Opus 5](https://noometry.com/models/claude-opus-5) | Anthropic | **68.0** | 67.5 | 77.2 | 55.6 | $5 | $25 | | 6 | [GPT-5.6 Sol](https://noometry.com/models/gpt-5-6-sol) | OpenAI | **65.0** | 65.1 | 74.8 | 50.3 | $4 | $20 | | 7 | [GPT-6.1 Sol](https://noometry.com/models/gpt-6-1-sol) | OpenAI | **64.1** | 63.2 | 81.9 | 39.6 | $2 | $10 | | 8 | [GPT-5.5](https://noometry.com/models/gpt-5-5) | OpenAI | **61.1** | 58.2 | 72.8 | 50.7 | $5 | $30 | | 9 | [Gemini 3.8 Flash](https://noometry.com/models/gemini-3-8-flash) | Google | **61.0** | 59.2 | 76.9 | 41.8 | $0.75 | $3.75 | | 10 | [GPT-6 Sol](https://noometry.com/models/gpt-6-sol) | OpenAI | **59.7** | 60.1 | 74.0 | 37.2 | $2 | $10 | | 11 | [Claude Opus 4.8](https://noometry.com/models/claude-opus-4-8) | Anthropic | **58.9** | 59.9 | 64.7 | 47.6 | $5 | $25 | | 12 | [Claude Sonnet 5.5](https://noometry.com/models/claude-sonnet-5-5) | Anthropic | **58.8** | 67.3 | 54.0 | 45.0 | $2 | $10 | | 13 | [Kimi K3](https://noometry.com/models/kimi-k3) (open weights) | Moonshot AI | **57.8** | 61.0 | 63.0 | 41.8 | $3 | $15 | | 14 | [Gemini 3.7 Flash](https://noometry.com/models/gemini-3-7-flash) | Google | **57.5** | 56.2 | 70.0 | 42.1 | $0.75 | $3.75 | | 15 | [Claude Opus 4.6](https://noometry.com/models/claude-opus-4-6) | Anthropic | **56.2** | 57.2 | 57.8 | 51.1 | $5 | $25 | | 16 | [Grok 4.6](https://noometry.com/models/grok-4-6) | xAI | **55.5** | 58.5 | 61.4 | 39.4 | $2 | $6 | | 17 | [Claude Opus 4.7](https://noometry.com/models/claude-opus-4-7) | Anthropic | **55.5** | 59.6 | 53.8 | 47.9 | $5 | $25 | | 18 | [GPT-5.6 Terra](https://noometry.com/models/gpt-5-6-terra) | OpenAI | **55.1** | 57.7 | 60.7 | 40.1 | $2 | $12 | | 19 | [GPT-5.4](https://noometry.com/models/gpt-5-4) | OpenAI | **54.2** | 52.6 | 61.8 | 46.5 | $2.50 | $15 | | 20 | [Gemini 4 Argon](https://noometry.com/models/gemini-4-argon) | Google | **54.1** | 62.0 | 44.2 | 49.2 | — | — | | 21 | [Muse Spark 1.3](https://noometry.com/models/muse-spark-1-3) | Meta | **52.3** | 56.6 | 54.0 | 38.6 | $1.25 | $4.25 | | 22 | [Qwen3.8 Max](https://noometry.com/models/qwen3-8-max) | Alibaba (Qwen) | **52.1** | 53.5 | 54.4 | 45.4 | $2 | $6 | | 23 | [Grok 4.5](https://noometry.com/models/grok-4-5) | xAI | **51.8** | 52.2 | 56.1 | 44.4 | $2 | $6 | | 24 | [Grok 4.7](https://noometry.com/models/grok-4-7) | xAI | **51.0** | 58.0 | 49.1 | 36.7 | $2 | $6 | | 25 | [Claude Sonnet 5](https://noometry.com/models/claude-sonnet-5) | Anthropic | **51.0** | 55.5 | 49.1 | 42.8 | $2 | $10 | Sponsored placements are available on pages like this one. [Advertise on Noometry](https://noometry.com/advertise) Top two head to head: [GPT-6 Astra vs Claude Fable 5.1](https://noometry.com/compare/claude-fable-5-1-vs-gpt-6-astra) ## Frequently asked questions ### What is the best ai model for debugging? For debugging, GPT-6 Astra scores highest on the current data (72.9), weighting coding 50%, reasoning 30%, agentic & tool use 20%. The cheapest model in the top 10 is Gemini 3.8 Flash at $0.75 / $3.75 per million tokens. ### How is this shortlist built? Debugging rewards reading unfamiliar code and reasoning about cause and effect. 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(2026). Best AI model for debugging. Retrieved October 10, 2026, from https://noometry.com/best/for/debugging Quote Noometry with a link back to this page. It is also available in [Markdown](https://noometry.com/md/best/for/debugging.md).