Coding benchmark

FrontierCode leaderboard

As of October 2026, Claude Opus 5.5 has the highest published FrontierCode score on Noometry at 54.6%, out of 37 models with results.

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About FrontierCode

A description with primary sources is being prepared for this benchmark.

Category
Coding
Introduced
2026
Unit
Percent (random guessing ≈ 0%)
Official site
epoch.ai

Top 15 models

Top models on FrontierCode
  1. Claude Opus 5.5 54.6%
  2. Claude Fable 5 53.5%
  3. Claude Opus 5 53.4%
  4. GPT-6 Astra 53.3%
  5. Claude Sonnet 5.5 52.1%
  6. Claude Fable 5.1 50.9%
  7. GPT-6.1 Sol 50.2%
  8. GPT-6 Sol 49.3%
  9. Grok 4.6 48%
  10. Grok 4.7 47.6%
  11. GPT-5.6 Sol 47.5%
  12. Claude Opus 4.8 46.5%
  13. Kimi K3 44.2%
  14. Gemini 3.7 Flash 43.6%
  15. GPT-5.5 43%

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All results

Compare the leaders

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Frequently asked questions

Which model has the highest FrontierCode score?

As of October 2026, Claude Opus 5.5 has the highest published FrontierCode score on Noometry at 54.6%, out of 37 models with results.

What is the best open-weight model on FrontierCode?

Kimi K3 has the highest FrontierCode accuracy among open-weight models at 44.2%, ranking 13 of 37 overall.