Claude Fable 5

Source benchmark-specific methodology; Qwen benchmark effort unspecified, GPT-5.6 Sol max per table header. Max in Qwen model names is not a reported effort setting. Comparator settings and source citations as documented in the model card. Internal Qoder tasks,ClaudeCode,avg@5,6h,32768 output,temp1,256K.

First-party reported result.

Comparison limit: The source states that Fable 5 results may involve fallback execution; an exact configuration is not established.

Qwen/Qwen3.8-2.4T-A95B · Performance table: QwenQoderBench · reviewed 2026-10-18

Source benchmark-specific methodology; Qwen benchmark effort unspecified, GPT-5.6 Sol max per table header. Max in Qwen model names is not a reported effort setting. Comparator settings and source citations as documented in the model card. Internal bilingual EN/CN React benchmark,7categories,ClaudeCode,render+multimodaljudge,BT/Elo.

First-party reported result.

Comparison limit: The source states that Fable 5 results may involve fallback execution; an exact configuration is not established.

Qwen/Qwen3.8-2.4T-A95B · Performance table: QwenReactBench · reviewed 2026-10-18

Source benchmark-specific methodology; Qwen benchmark effort unspecified, GPT-5.6 Sol max per table header. Max in Qwen model names is not a reported effort setting. Comparator settings and source citations as documented in the model card. Internal bilingual EN/CN SVG benchmark,render+multimodaljudge,BT/Elo.

First-party reported result.

Comparison limit: The source states that Fable 5 results may involve fallback execution; an exact configuration is not established.

Qwen/Qwen3.8-2.4T-A95B · Performance table: QwenSVGBench · reviewed 2026-10-18

Source benchmark-specific methodology; Qwen benchmark effort unspecified, GPT-5.6 Sol max per table header. Max in Qwen model names is not a reported effort setting. Comparator settings and source citations as documented in the model card. Internal software engineering,ClaudeCode,avg@3,8h,32768 output,temp1,256K.

First-party reported result.

Comparison limit: The source states that Fable 5 results may involve fallback execution; an exact configuration is not established.

Qwen/Qwen3.8-2.4T-A95B · Performance table: QwenSWEBench · reviewed 2026-10-18

Table headers: Kimi K3, GPT-5.6 Sol, Opus 4.8 and GLM-5.2 max; GPT-5.5 xhigh; Fable 5 max with fallbacks. Benchmark-specific footnotes override header settings; cited results are not new Moonshot evaluations. Benchmark-specific tools, harness and budget documented under Evaluation Details. Kimi temp1; single-step top_p.95,agentic top_p1; vision tools=Python,3runs except ZeroBench5runs.

Cited result; see benchmark-specific Evaluation Details.

Comparison limit: Kimi K3 Evaluation Details cites Artificial Analysis; retain as published context, not a new Moonshot comparison.

moonshotai/Kimi-K3 · Performance table: SciCode · reviewed 2026-10-18

Source benchmark-specific methodology; Qwen benchmark effort unspecified, GPT-5.6 Sol max per table header. Max in Qwen model names is not a reported effort setting. Comparator settings and source citations as documented in the model card. v1.1 public87tasks,3runs; Anthropic ClaudeCode,OpenAI Codex,Qwen OpenCode.

First-party reported result.

Comparison limit: The source states that Fable 5 results may involve fallback execution; an exact configuration is not established.

Qwen/Qwen3.8-2.4T-A95B · Performance table: SkillsBench · reviewed 2026-10-18

Table headers: Kimi K3, GPT-5.6 Sol, Opus 4.8 and GLM-5.2 max; GPT-5.5 xhigh; Fable 5 max with fallbacks. Benchmark-specific footnotes override header settings; cited results are not new Moonshot evaluations. Benchmark-specific tools, harness and budget documented under Evaluation Details. Kimi temp1; single-step top_p.95,agentic top_p1; vision tools=Python,3runs except ZeroBench5runs.

First-party reported result.

moonshotai/Kimi-K3 · Performance table: SpreadsheetBench 2 · reviewed 2026-10-18

Anthropic reported configuration; adaptive thinking at max effort, default sampling, five-trial mean unless section specifies otherwise; context at most 1M. Comparator configuration follows cited prior card or board. Agent identity is not established as mini-swe-agent.

Fable is the safeguarded deployed configuration; selected tasks may use disclosed Opus fallback, except evaluations explicitly counting safety blocks as failures.

Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table 8.1.A; section 8.2 · reviewed 2026-10-18

Anthropic reported configuration; adaptive thinking at max effort, default sampling, five-trial mean unless section specifies otherwise; context at most 1M. Comparator configuration follows cited prior card or board. Agent identity is not established as mini-swe-agent.

Fable is the safeguarded deployed configuration; selected tasks may use disclosed Opus fallback, except evaluations explicitly counting safety blocks as failures.

Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table 8.1.A; section 8.2 · reviewed 2026-10-18

Anthropic reported configuration; adaptive thinking at max effort, default sampling, five-trial mean unless section specifies otherwise; context at most 1M. Comparator configuration follows cited prior card or board. Agent identity is not established as mini-swe-agent.

Fable is the safeguarded deployed configuration; selected tasks may use disclosed Opus fallback, except evaluations explicitly counting safety blocks as failures.

Claude Fable 5.1 and Claude Mythos 5.1 System Card · Table 8.1.A; section 8.2 · reviewed 2026-10-18

Launch table reported configuration; per-cell reasoning effort unspecified

Provider-published result; comparator measurements are not automatically independently reproduced.

GPT-5.6: Frontier intelligence that scales with your ambition · Coding table / SWE-Bench Pro / Claude Fable 5 · reviewed 2026-09-06

Source benchmark-specific methodology; Qwen benchmark effort unspecified, GPT-5.6 Sol max per table header. Max in Qwen model names is not a reported effort setting. Comparator settings and source citations as documented in the model card. Refined task set with problematic tasks corrected; all baselines rerun, Claude Code,temp1,top_p.95,256K context.

First-party reported result.

Comparison limit: The source states that Fable 5 results may involve fallback execution; an exact configuration is not established.

Qwen/Qwen3.8-2.4T-A95B · Performance table: SWE-bench Pro · reviewed 2026-10-18

Table headers: Kimi K3, GPT-5.6 Sol, Opus 4.8 and GLM-5.2 max; GPT-5.5 xhigh; Fable 5 max with fallbacks. Benchmark-specific footnotes override header settings; cited results are not new Moonshot evaluations. Benchmark-specific tools, harness and budget documented under Evaluation Details. Kimi temp1; single-step top_p.95,agentic top_p1; vision tools=Python,3runs except ZeroBench5runs.

First-party reported result.

moonshotai/Kimi-K3 · Performance table: SWE-Marathon · reviewed 2026-10-18

GLM-5.3 release table; benchmark-specific harness and reasoning configurations in Evaluation Details.

First-party reported result.

Comparison limit: The source column includes fallback execution without a documented exact effort.

zai-org/GLM-5.3 · Performance table: SWE-Marathon (v1.1) · reviewed 2026-10-18

Source benchmark-specific methodology; Qwen benchmark effort unspecified, GPT-5.6 Sol max per table header. Max in Qwen model names is not a reported effort setting. Comparator settings and source citations as documented in the model card. Qwen Claude Code avg@10,5h timeout,131072 output; comparators best published across harnesses.

Cited comparator result; see the benchmark footnote.

Comparison limit: The Qwen card cites an external leaderboard or release report for this comparator; it is not a new Qwen evaluation. The source states that Fable 5 results may involve fallback execution; an exact configuration is not established.

Qwen/Qwen3.8-2.4T-A95B · Performance table: Terminal Bench 2.1 · reviewed 2026-10-18

DeepSeek updated 0813/0731 release evaluation table; tool/harness settings per model card.

First-party reported result.

Comparison limit: The source labels this column Fable-5 (w/ fallback); it does not establish standalone Fable 5 performance. Retained as published evidence, excluded from comparable ranking inputs.

deepseek-ai/DeepSeek-V4-Pro-0813 · Performance table: Terminal Bench 2.1 · reviewed 2026-10-18

GLM-5.3 release table; benchmark-specific harness and reasoning configurations in Evaluation Details.

First-party reported result.

Comparison limit: The source column includes fallback execution without a documented exact effort.

zai-org/GLM-5.3 · Performance table: Terminal Bench 2.1 · reviewed 2026-10-18

GLM-5.3 release table; benchmark-specific harness and reasoning configurations in Evaluation Details.

First-party reported result.

Comparison limit: The source column includes fallback execution without a documented exact effort.

zai-org/GLM-5.3 · Performance table: Terminal Bench 3.0 · reviewed 2026-10-18

Claude Code --bare max effort, 15 trials/task over 66 tasks; Anthropic internal reruns.

Uses more precise section values rather than rounded headline table. Distinct from2.1; timeouts/resources changed. Fable is the safeguarded deployed configuration; selected tasks may use disclosed Opus fallback, except evaluations explicitly counting safety blocks as failures.

Claude Fable 5.1 and Claude Mythos 5.1 System Card · 8.6 · reviewed 2026-10-18

Launch table reported configuration; per-cell reasoning effort unspecified

Provider-published result; comparator measurements are not automatically independently reproduced.

GPT-5.6: Frontier intelligence that scales with your ambition · Coding table / Terminal-Bench 2.1 / Claude Fable 5 · reviewed 2026-09-06

Table headers: Kimi K3, GPT-5.6 Sol, Opus 4.8 and GLM-5.2 max; GPT-5.5 xhigh; Fable 5 max with fallbacks. Benchmark-specific footnotes override header settings; cited results are not new Moonshot evaluations. Benchmark-specific tools, harness and budget documented under Evaluation Details. Kimi temp1; single-step top_p.95,agentic top_p1; vision tools=Python,3runs except ZeroBench5runs.

Cited result; see benchmark-specific Evaluation Details.

Comparison limit: Kimi K3 Evaluation Details cites GLM release blog, Artificial Analysis or OpenAI, per model; retain as published context, not a new Moonshot comparison.

moonshotai/Kimi-K3 · Performance table: Terminal-Bench 2.1 · reviewed 2026-10-18

Maximum reported across reasoning efforts; OpenAI research environment or API

Provider-published result; comparator measurements are not automatically independently reproduced.

GPT-6 Astra: A new generation of intelligence · Coding table / Terminal-Bench 4.0 / Claude Fable 5 · reviewed 2026-09-06

Maximum reported across reasoning efforts; OpenAI research environment or API

Provider-published result; comparator measurements are not automatically independently reproduced.

GPT-6 Astra: A new generation of intelligence · Academic table / Terminal-Bench Science 0.1 / Claude Fable 5 · reviewed 2026-09-06