modelbench日本語

Claude Fable 5

AnthropicLegacy

Input price
$10.00
Per 1 million tokens (USD)
Output price
$50.00
Per 1 million tokens (USD)
Effort levels
5total
Default: High
Benchmark results
16total
Benchmark types: 9

Model information

API model ID
claude-fable-5
release date
Unknown
effort
Low / Med / High (default) / Xhigh / Max
Effort source
Based on Anthropic effort documentation (platform.claude.com/docs/en/build-with-claude/effort).
Claude Code
available
Codex
unavailable
Availability notes
Selectable with `/model claude-fable-5`. In Claude apps gateway sessions, `fable` resolves to Fable 5. Codex's official model list (learn.chatgpt.com/docs/models) contains only OpenAI models, so codex is false (connections via a custom provider are not counted as official options).
Availability source
https://code.claude.com/docs/en/model-config

Price (USD per 1 million tokens)

Prices do not vary by effort; token consumption does.

input$10.00
output$50.00
cache read$1.00
cache write$12.50

cacheWritePerMTok is for a 5-minute cache write. 1h write $20.

Claude Fable 5 | $10 / MTok | $12.50 / MTok | $20 / MTok | $1 / MTok | $50 / MTok

Source: https://platform.claude.com/docs/en/about-claude/pricing

Benchmark results

BenchmarkeffortScoreSource cost (metric)measured/reported bysourceConditions and extraction method
GPQA DiamondLowLow78.8%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, gpqa_diamond.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (low)". effort is indicated by the suffix _low in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptgpqa_diamond.csv: Model version=claude-fable-5_low, Best score (across scorers)=0.7878787878787878, stderr=0.029126522834586777, Started at=2026-08-06T22:17:37.000ZLocation gpqa_diamond.csv, data row 141 (file line 201), id=U5PsUdX2ak4kJ2hgnQkWnX, Model version=claude-fable-5_low
GPQA DiamondHigh (default)High83.3%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, gpqa_diamond.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (high)". effort is indicated by the suffix _high in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptgpqa_diamond.csv: Model version=claude-fable-5_high, Best score (across scorers)=0.8333333333333334, stderr=0.026552207828215258, Started at=2026-08-06T22:17:31.000ZLocation gpqa_diamond.csv, data row 142 (file line 202), id=d23hYvSNGFo7rniLFyBWiu, Model version=claude-fable-5_high
GPQA DiamondMaxMax85.9%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, gpqa_diamond.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptgpqa_diamond.csv: Model version=claude-fable-5_max, Best score (across scorers)=0.8585858585858586, stderr=0.024825909793343353, Started at=2026-08-06T22:17:56.000ZLocation gpqa_diamond.csv, data row 140 (file line 200), id=S5pm7ctk9zgPfbyHrbD9AV, Model version=claude-fable-5_max
FrontierMath Tiers 1-3(v2)MaxMax87.0%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, frontiermath_tiers_1_3_v2.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptfrontiermath_tiers_1_3_v2.csv: Model version=claude-fable-5_max, Best score (across scorers)=0.8701754385964913, stderr=0.019944477920133024, Started at=2026-06-09T18:12:35.000ZLocation frontiermath_tiers_1_3_v2.csv, data row 125 (file line 157), id=E28uZiJvrPgKtawbJpoZQ8, Model version=claude-fable-5_max
FrontierMath Tier 4(v2)MaxMax90.2%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, frontiermath_tier_4_v2.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptfrontiermath_tier_4_v2.csv: Model version=claude-fable-5_max, Best score (across scorers)=0.902, stderr=0.046, Started at=2026-06-09T18:12:35.000ZLocation frontiermath_tier_4_v2.csv, data row 81 (file line 120), id=ReDAtJGGfRtrEGGWf4Zbsd, Model version=claude-fable-5_max
OTIS Mock AIME 2024-2025LowLow97.8%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, otis_mock_aime_2024_2025.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (low)". effort is indicated by the suffix _low in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptotis_mock_aime_2024_2025.csv: Model version=claude-fable-5_low, Best score (across scorers)=0.9777777777777777, stderr=0.022222222222222223, Started at=2026-08-06T22:18:24.000ZLocation otis_mock_aime_2024_2025.csv, data row 148 (file line 213), id=6E989Xxeuw925T7cCV3XGB, Model version=claude-fable-5_low
OTIS Mock AIME 2024-2025High (default)High100.0%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, otis_mock_aime_2024_2025.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (high)". effort is indicated by the suffix _high in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptotis_mock_aime_2024_2025.csv: Model version=claude-fable-5_high, Best score (across scorers)=1.0, stderr=0.0, Started at=2026-08-06T22:18:19.000ZLocation otis_mock_aime_2024_2025.csv, data row 149 (file line 214), id=hwrnvtEbDAocFtjcsHqsQh, Model version=claude-fable-5_high
OTIS Mock AIME 2024-2025MaxMax99.7%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, otis_mock_aime_2024_2025.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptotis_mock_aime_2024_2025.csv: Model version=claude-fable-5_max, Best score (across scorers)=0.9972222222222222, stderr=0.002777777777777778, Started at=2026-06-10T20:03:17.000ZLocation otis_mock_aime_2024_2025.csv, data row 184 (file line 259), id=eiLEpRUvK48wUKDh4sYkzV, Model version=claude-fable-5_max
SimpleQA VerifiedXhighXhigh70.7%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, simpleqa_verified.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (xhigh)". effort is indicated by the suffix _xhigh in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptsimpleqa_verified.csv: Model version=claude-fable-5_xhigh, Best score (across scorers)=0.707, stderr=0.014399942998441292, Started at=2026-08-10T23:44:03.000ZLocation simpleqa_verified.csv, data row 96 (file line 146), id=SEnvgtunRa5GwAtU2sHa87, Model version=claude-fable-5_xhigh
Chess Puzzles(Epoch AI)LowLow31.0%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, chess_puzzles.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (low)". effort is indicated by the suffix _low in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptchess_puzzles.csv: Model version=claude-fable-5_low, Best score (across scorers)=0.31, stderr=0.04648231987117317, Started at=2026-10-13T13:23:41.000ZLocation chess_puzzles.csv, data row 134 (file line 190), id=2jKf4iEfVQnHkgAwEtD9Nn, Model version=claude-fable-5_low
Chess Puzzles(Epoch AI)High (default)High45.0%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, chess_puzzles.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (high)". effort is indicated by the suffix _high in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptchess_puzzles.csv: Model version=claude-fable-5_high, Best score (across scorers)=0.45, stderr=0.05, Started at=2026-10-13T13:24:08.000ZLocation chess_puzzles.csv, data row 133 (file line 189), id=9ZFhnyMNCKZ8XdR58WGD3D, Model version=claude-fable-5_high
Chess Puzzles(Epoch AI)MaxMax47.0%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, chess_puzzles.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptchess_puzzles.csv: Model version=claude-fable-5_max, Best score (across scorers)=0.47, stderr=0.05016135580465918, Started at=2026-10-13T13:34:37.000ZLocation chess_puzzles.csv, data row 121 (file line 175), id=bxS76CJuVws8iwWU2Wr2PM, Model version=claude-fable-5_max
MirrorCodeHigh (default)High63.9%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, mirrorcode.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (high)". effort is indicated by the suffix _high in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptmirrorcode.csv: Model version=claude-fable-5_high, Best score (across scorers)=0.638888888888889, stderr=0.10404092940368063, Started at=2026-08-10T16:12:44.227ZLocation mirrorcode.csv, data row 45 (file line 68), id=mirrorcode-ml-2l-claude-fable-5, Model version=claude-fable-5_high
MirrorCodeMaxMax70.0%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, mirrorcode.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "Claude Fable 5 (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptmirrorcode.csv: Model version=claude-fable-5_max, Best score (across scorers)=0.7, stderr=0.10440053112638316, Started at=2026-10-30T18:27:32.000ZLocation mirrorcode.csv, data row 1 (file line 2), id=5z3kmMLG4o5sSC6R7Ny4BS, Model version=claude-fable-5_max
Epoch Capabilities Index(ECI)not statednot stated164.13—Epoch AIEpoch AI, epoch_capabilities_index/eci_scores.csv (CC BY 4.0)third-party · Retrieved 2026-11-12A per-model metric that combines results across multiple benchmarks and multiple efforts (not per effort). Calculated by Epoch AI.transcribed from table
Source excerpteci_scores.csv: Model=Claude Fable 5, eci=164.13, eci_ci_low=161.68, eci_ci_high=166.83Location epoch_capabilities_index/eci_scores.csv, data row 11 (file line 12), Model=Claude Fable 5
τ²-bench banking_knowledge (v1.0.1)MaxMax39.7%—Sierraτ²-bench leaderboard submission claude-fable-5_sierra_2026-08-04 (sierra-research/tau2-bench, MIT)third-party · Retrieved 2026-11-13τ²-bench leaderboard submission claude-fable-5_sierra_2026-08-04 (submission_type standard, tau2_bench_version 1.0.1). Submitter "Sierra", model_organization "Anthropic": Run by Sierra, which operates τ²-bench (third-party measurement). Verified on the leaderboard (trajectories available, prompts not modified, no questions omitted). The value is pass^1 (%). reasoning_effort "max". User simulator gpt-5.2 (reasoning_effort low). Search configuration retrieval_config "alltools". Evaluation date 2026-07-23. Notes summary: 4 trial runs; seed 300.transcribed from table
Source excerptbanking_knowledge.pass_1=39.69072164948454Location In submissions/claude-fable-5_sierra_2026-08-04/submission.json: results.banking_knowledge.pass_1 (line 17 of file). model_name "Claude Fable 5". methodology.notes (line 36)

Related rankings

References