Frontier Log

Benchmark

SWE-bench Pro

020406080100Jan 2026Apr 2026Jul 2026Oct 202643.3%Gemini 3 Pro55.6%GPT-5.277.8%Mythos Preview64.3%Opus 4.780%Fable 580.3%Mythos 554.3%Inkling79.2%Opus 567.7%Qwen3.8-Max89.9%Opus 5.564.8%Haiku 5.5020406080100Jan 2026Apr 2026Jul 2026Oct 202643.3%Gemini 3 Pro77.8%Mythos Preview64.3%Opus 4.747.6%Laguna XS 2.189.9%Opus 5.5

Results

ModelScoreSourceHuman-verified
Claude Haiku 5.57 Oct 2026 · Anthropic64.8%Claude Haiku 5.5 System Cardadaptive thinking, max effort, average of 5 trialsThe source doesn't say whether this is the public or the commercial setYes
Claude Sonnet 5.528 Sep 2026 · Anthropic81.3%Claude Sonnet 5.5 System Cardadaptive thinking, max effort, average of 5 trialsThe source doesn't say whether this is the public or the commercial setYes
Claude Opus 5.522 Sep 2026 · Anthropic89.9%Claude Opus 5.5 System Cardadaptive thinking, max effort, average of 5 trialsThe source doesn't say whether this is the public or the commercial setYes
Claude Fable 5.11 Sep 2026 · Anthropic81.2%Claude Fable 5.1 and Claude Mythos 5.1 System Cardaverage of 5 trials; from the card's prose (its table merges Fable 5.1 and Mythos 5.1)The source doesn't say whether this is the public or the commercial setYes
Qwen3.8-Max3 Aug 2026 · Alibaba67.7%Qwen3.8-Max: A New Bar for Coding and CoworkClaude Code harnessRun on the lab's own corrected version of the public setYes
Claude Opus 524 Jul 2026 · Anthropic79.2%Claude Opus 5 System Cardadaptive thinking, max effort, average of 5 trialsThe source doesn't say whether this is the public or the commercial setYes
Gemini 3.6 Flash21 Jul 2026 · Google58.7%Gemini 3.6 Flash - Model Cardresults as of July 2026Yes
Inkling15 Jul 2026 · Thinking Machines54.3%Inkling: Our Open-Weights Modeleffort 0.99, temperature 1.0, 256K-token trajectory limitYes
GPT-5.6 Sol9 Jul 2026 · OpenAI64.6%GPT-5.6: Frontier intelligence that scales with your ambitionThe source doesn't say whether this is the public or the commercial setYes
Laguna XS 2.12 Jul 2026 · Poolside47.6%Introducing Laguna XS 2.1poolside harness on Harbor, mean pass@1 over 2 attempts, some task images patched for infrastructure reliabilityThe source doesn't say whether this is the public or the commercial setYes
Claude Sonnet 530 Jun 2026 · Anthropic63.2%Introducing Claude Sonnet 5The source doesn't say whether this is the public or the commercial setSource imageYes
Claude Fable 59 Jun 2026 · Anthropic80%Claude Fable 5 and Claude Mythos 5 System Cardadaptive thinking, max effort, average of 5 trials; with production safeguards, including fallback to Opus 4.8The source doesn't say whether this is the public or the commercial setYes
Claude Mythos 59 Jun 2026 · Anthropic80.3%Claude Fable 5 and Claude Mythos 5 System Cardadaptive thinking, max effort, average of 5 trialsThe source doesn't say whether this is the public or the commercial setYes
MiniMax M31 Jun 2026 · MiniMax59.0%MiniMax M3: Frontier Coding, 1M Context, Native Multimodality — All in One ModelClaude Code scaffoldThe source doesn't say whether this is the public or the commercial setSource imageYes
Claude Opus 4.828 May 2026 · Anthropic69.2%Introducing Claude Opus 4.8The source doesn't say whether this is the public or the commercial setSource imageYes
Gemini 3.5 Flash19 May 2026 · Google55.1%Gemini 3.5: frontier intelligence with actionsingle attemptSource imageYes
DeepSeek-V4-Pro24 Apr 2026 · DeepSeek55.4%DeepSeek V4 Preview ReleaseMax reasoning effortThe source doesn't say whether this is the public or the commercial setSource imageYes
GPT-5.523 Apr 2026 · OpenAI58.6%Introducing GPT-5.5Yes
Kimi K2.620 Apr 2026 · Moonshot AI58.6%Kimi K2.6: Advancing Open-Source Codingin-house framework adapted from SWE-agent, thinking mode, average of 10 runsThe source doesn't say whether this is the public or the commercial setYes
Claude Opus 4.716 Apr 2026 · Anthropic64.3%Introducing Claude Opus 4.7memorization screens flag a subset of problems; the margin over Opus 4.6 holds without themThe source doesn't say whether this is the public or the commercial setSource imageYes
Claude Mythos Preview7 Apr 2026 · Anthropic77.8%Introducing Claude Opus 4.7reported laterThe source doesn't say whether this is the public or the commercial setSource imageYes
GPT-5.45 Mar 2026 · OpenAI57.7%Introducing GPT-5.4Yes
Gemini 3.1 Pro19 Feb 2026 · Google54.2%Gemini 3.1 Pro: A smarter model for your most complex taskssingle attempt, Thinking (High)Source imageYes
MiniMax M2.512 Feb 2026 · MiniMax55.4%MiniMax M2.5: Built for Real-World Productivity.Claude Code scaffold, average of 4 runsThe source doesn't say whether this is the public or the commercial setSource imageYes
GPT-5.3-Codex5 Feb 2026 · OpenAI56.8%Introducing GPT-5.3-Codexxhigh reasoning effortYes
Kimi K2.527 Jan 2026 · Moonshot AI50.7%Kimi K2.5: Visual Agentic Intelligencein-house minimal-tool framework, non-thinking mode, average of 5 runsThe source doesn't say whether this is the public or the commercial setYes
GPT-5.211 Dec 2025 · OpenAI55.6%Introducing GPT-5.2Yes
Gemini 3 Pro18 Nov 2025 · Google43.3%Gemini 3.1 Pro: A smarter model for your most complex tasksreported later; single attempt, Thinking (High)Source imageYes

Benchmark

scale.comHigher is better

Scale AIIntroduced 19 Sep 2025

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