Anthropic
·Released on Sep 1, 2026

Claude Fable 5.1 API Benchmarks, Pricing & Provider Data

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Claude Fable 5.1 benchmark, API pricing, and provider data cover undefined API provider} other undefined API providers}}, with prices starting at $0.103/M. Claude Fable 5.1 free API options are available from undefined provider} other undefined providers}}.

Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...

Quality
#6of 112
77.0
LMSpeed score
Cost
#175of 186
$0.103/ 1M · 8:1 in:out
$0.016 in · $0.086 out

Category Performance

Observed-capability estimates with uncertainty reported separately from independent benchmark families.

Coverage
4 / 8
Methodology
V3.0
Category PerformanceObserved-capability estimates with uncertainty reported separately from independent benchmark families.Agents61.7Coding68.5Reasoning61.2Knowledge68Math-Multilingual-Multimodal-Instruction following-
#1Coding68.5RatedGlobal rank #14/4 Measured dimensions
80% interval: 61.675.4
code generation64.4
scicode · scicode
repository engineering71.8
swe_pro · swe_pro
debugging testing74.5
swe_multilingual · benchlm_coding_swe_multilingual
tooling quality63.3
terminalbench · aa_terminal_bench21
#2Knowledge68Provisional1/4 Measured dimensions
80% interval: 54.082.0
broad knowledge68
aa_omniscience · aa_omniscience_index / benchlm_category_knowledge · benchlm_category_knowledge
professional knowledgePrior only
factualityPrior only
retrieval open bookPrior only
#3Agents61.7RatedGlobal rank #93/4 Measured dimensions
80% interval: 53.270.3
planningPrior only
tool use58.8
tau · aa_tau3_banking
environment execution62.8
gdpval_aa · benchlm_agentic_gdpval_aa / osworld · os_world2
recovery reliability63.6
briefcase · aa_briefcase_elo / harvey_lab · aa_harvey_lab
#4Reasoning61.2RatedGlobal rank #23/4 Measured dimensions
80% interval: 52.570.0
abstract logic58.1
arc_agi · arc_agi2
scientific causal66.1
critpt · critpt / gpqa · gpqa / hle · hle / hle · hle_no_tools
multistep constraintsPrior only
evidence verification59.5
lcr · lcr
No data:MathMultilingualMultimodalInstruction following

Specifications

Input and output token limits for this model, plus how it ranks on long-context understanding.

INPUT
1Mtokens
1.2K pages of text
OUTPUT
128Ktokens
8K128K1M4M
1M

Features

Technical Details

Input
Output
Released
Sep 2026
Documentation
Tokenizer
Claude
Architecture
text+image+file->text
Moderated
Yes
Supported parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstoolsverbosity

Rankings

Excels at

Falls behind in

Detailed scores

Updated: Sep 14, 2026

Overall

undefined metric} other undefined metrics}}

Overall score77.0#6 / 112DeepSWE67.4#8 / 21
Overall score
LMSpeed rank#6
Score77.0
UpdatedSep 14, 2026
Confidence2
DeepSWE
LMSpeed rank#8
Score67.4
UpdatedSep 10, 2026
Confidence2

Speed & latency

undefined metric} other undefined metrics}}

Output speed58.3 tok/s#66 / 80Time to first token9.80 s#65 / 80
Output speed
LMSpeed rank#66
Score58.3 tok/s
UpdatedSep 14, 2026
Confidence4
Time to first token
LMSpeed rank#65
Score9.80 s
UpdatedSep 14, 2026
Confidence4

Pricing

undefined metric} other undefined metrics}}

Input price$10.00/M#175 / 186Output price$50.00/M#176 / 186
Input price
LMSpeed rank#175
Score$10.00/M
UpdatedSep 14, 2026
Confidence4
Output price
LMSpeed rank#176
Score$50.00/M
UpdatedSep 14, 2026
Confidence4

Agents

V3.0

undefined metric} other undefined metrics}} · Rated

Score61.7#980% interval53.2–70.33/4 Measured dimensionsAgentic score60.8#42 / 77Terminal-Bench 4.055.8#2 / 3
Dimensions and evidence
Planning & decompositionPrior only
Tool use58.8
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
tau · aa_tau3_banking · z 0.65 · q 1.00
Environment & long-horizon execution62.8
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
gdpval_aa · benchlm_agentic_gdpval_aa · z 1.50 · q 1.00
osworld · os_world2 · z 0.67 · q 1.00
Recovery & completion reliability63.6
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
briefcase · aa_briefcase_elo · z 0.85 · q 1.00
harvey_lab · aa_harvey_lab · z 0.55 · q 1.00
Agentic score
LMSpeed rank#42
Score60.8
UpdatedSep 14, 2026
Confidence2
Terminal-Bench 4.0
LMSpeed rank#2
Score55.8
UpdatedSep 14, 2026
Confidence2
Terminal-Bench-Science 0.1
LMSpeed rank#2
Score52.6
UpdatedSep 14, 2026
Confidence2
OSWorld 2.0V3 evidence
LMSpeed rank#9
Score41.7
UpdatedSep 14, 2026
Confidence2
AutomationBench
LMSpeed rank#5
Score31.4
UpdatedSep 14, 2026
Confidence2
Toolathlon-Verified
LMSpeed rank#3
Score77.8
UpdatedSep 14, 2026
Confidence2
Toolathlon Verified Pass@3
LMSpeed rank#2
Score81.5
UpdatedSep 14, 2026
Confidence2
Toolathlon Verified Pass³
LMSpeed rank#1
Score73.1
UpdatedSep 14, 2026
Confidence2
Toolathlon Verified avg. turns
LMSpeed rank#1
Score23.7
UpdatedSep 14, 2026
Confidence2
AA Agentic Index
LMSpeed rank#2
Score58.0
UpdatedSep 14, 2026
Confidence2
GDPval-AA
LMSpeed rank#1
Score63.2
UpdatedSep 14, 2026
Confidence2
GDPval-AAV3 evidence
LMSpeed rank#3
Score1764.0
UpdatedSep 14, 2026
Confidence2
AA BriefcaseV3 evidence
LMSpeed rank#2
Score1662.0
UpdatedSep 14, 2026
Confidence2
AA Harvey LABV3 evidence
LMSpeed rank#5
Score93.0
UpdatedSep 14, 2026
Confidence2
AA Tau3 BankingV3 evidence
LMSpeed rank#4
Score47.2
UpdatedSep 14, 2026
Confidence2
Terminal-Bench 2.1 (Vals)
LMSpeed rank#3
Score85.0
UpdatedSep 14, 2026
Confidence2
AA AutomationBench
LMSpeed rank#7
Score59.4
UpdatedSep 14, 2026
Confidence2
AA Terminal-Bench 4.0
LMSpeed rank#2
Score52.0
UpdatedSep 14, 2026
Confidence2
GDP.pdf
LMSpeed rank#4
Score26.2
UpdatedSep 14, 2026
Confidence2
AA-AnalystAgent
LMSpeed rank#2
Score57.5
UpdatedSep 14, 2026
Confidence2
ApprenticeBench
LMSpeed rank#1
Score72.0
UpdatedSep 14, 2026
Confidence2

Coding

V3.0

undefined metric} other undefined metrics}} · Rated

Score68.5#180% interval61.6–75.44/4 Measured dimensionsSciCode58.7%#6 / 89Coding score90.4#1 / 87
Dimensions and evidence
Code generation64.4
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
scicode · scicode · z 1.74 · q 1.00
Repository engineering71.8
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
swe_pro · swe_pro · z 3.00 · q 1.00
Debugging & testing74.5
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
swe_multilingual · benchlm_coding_swe_multilingual · z 3.00 · q 1.00
Tool-assisted development & quality63.3
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
terminalbench · aa_terminal_bench21 · z 1.27 · q 1.00
SciCodeV3 evidence
LMSpeed rank#6
Score58.7%
UpdatedSep 14, 2026
Confidence4
Coding score
LMSpeed rank#1
Score90.4
UpdatedSep 14, 2026
Confidence2
AA Terminal-Bench 2.1V3 evidence
LMSpeed rank#1
Score91.4
UpdatedSep 14, 2026
Confidence2
SWE-bench ProV3 evidence
LMSpeed rank#1
Score81.2
UpdatedSep 14, 2026
Confidence2
SWE MultilingualV3 evidence
LMSpeed rank#2
Score89.1
UpdatedSep 14, 2026
Confidence2
SWE Multimodal
LMSpeed rank#2
Score54.7
UpdatedSep 14, 2026
Confidence2
ProgramBench
LMSpeed rank#2
Score87.6
UpdatedSep 14, 2026
Confidence2
CursorBench v3.2
LMSpeed rank#1
Score73.4
UpdatedSep 14, 2026
Confidence2
AA Coding Index
LMSpeed rank#1
Score81.6
UpdatedSep 14, 2026
Confidence2
AA-SciCodeV3 evidence
LMSpeed rank#1
Score63.1
UpdatedSep 14, 2026
Confidence2
Bug Hunt Bench
LMSpeed rank#1
Score43.0
UpdatedSep 14, 2026
Confidence2
FrontierSWE v2
LMSpeed rank#1
Score56.3
UpdatedSep 14, 2026
Confidence2
LiveCodeBench (Vals)
LMSpeed rank#1
Score90.5
UpdatedSep 14, 2026
Confidence2
DeepSWE
LMSpeed rank#8
Score67.4
UpdatedSep 14, 2026
Confidence2

Reasoning

V3.0

undefined metric} other undefined metrics}} · Rated

Score61.2#280% interval52.5–70.03/4 Measured dimensionsGPQA90.6%#29 / 218HLE55.9%#3 / 216
Dimensions and evidence
Abstract logic58.1
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
arc_agi · arc_agi2 · z 0.99 · q 1.00
Scientific & causal reasoning66.1
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
critpt · critpt · z 0.99 · q 1.00
gpqa · gpqa · z 1.31 · q 1.00
hle · hle · z 1.35 · q 1.00
hle · hle_no_tools · z 2.00 · q 1.00
Multi-step constraintsPrior only
Evidence integration & verification59.5
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
lcr · lcr · z 0.92 · q 1.00
GPQAV3 evidence
LMSpeed rank#29
Score90.6%
UpdatedSep 14, 2026
Confidence4
HLEV3 evidence
LMSpeed rank#3
Score55.9%
UpdatedSep 14, 2026
Confidence4
Reasoning score
LMSpeed rank#3
Score79.4
UpdatedSep 14, 2026
Confidence2
ARC-AGI-1
LMSpeed rank#2
Score97.5
UpdatedSep 14, 2026
Confidence2
ARC-AGI-2V3 evidence
LMSpeed rank#4
Score90.0
UpdatedSep 14, 2026
Confidence2
AA-LCRV3 evidence
LMSpeed rank#2
Score85.3
UpdatedSep 14, 2026
Confidence2
CritPtV3 evidence
LMSpeed rank#6
Score29.7
UpdatedSep 14, 2026
Confidence2
MLCR-AA
LMSpeed rank#1
Score71.1
UpdatedSep 14, 2026
Confidence2

Knowledge

V3.0

undefined metric} other undefined metrics}} · Provisional

Score6880% interval54.0–82.01/4 Measured dimensionsKnowledge score97.5#1 / 83HLE w/o tools60.9#1 / 22
Dimensions and evidence
Broad knowledge68
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
aa_omniscience · aa_omniscience_index · z 1.58 · q 1.00
benchlm_category_knowledge · benchlm_category_knowledge · z 1.66 · q 1.00
Professional knowledgePrior only
FactualityPrior only
Retrieval & open-book usePrior only
Knowledge scoreV3 evidence
LMSpeed rank#1
Score97.5
UpdatedSep 14, 2026
Confidence2
HLE w/o tools
LMSpeed rank#1
Score60.9
UpdatedSep 14, 2026
Confidence2
Artificial Analysis Intelligence IndexV3 evidence
LMSpeed rank#5
Score53.4
UpdatedSep 14, 2026
Confidence2
AA-GPQA Diamond
LMSpeed rank#7
Score93.7
UpdatedSep 14, 2026
Confidence2
AA-HLE
LMSpeed rank#1
Score59.1
UpdatedSep 14, 2026
Confidence2
AA-Omniscience IndexV3 evidence
LMSpeed rank#1
Score43.5
UpdatedSep 14, 2026
Confidence2
AA-Omniscience Accuracy
LMSpeed rank#1
Score67.2
UpdatedSep 14, 2026
Confidence2
AA-Omniscience Hallucination Rate
LMSpeed rank#54
Score72.6
UpdatedSep 14, 2026
Confidence2
GPQA Diamond (Vals)
LMSpeed rank#7
Score93.4
UpdatedSep 14, 2026
Confidence2
MMLU-Pro (Vals)
LMSpeed rank#1
Score92.4
UpdatedSep 14, 2026
Confidence2

Math

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Foundational mathPrior only
Competition mathPrior only
Advanced proofsPrior only
Applied & tool-assisted mathPrior only

Multilingual

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Cross-language understandingPrior only
Multilingual generationPrior only
Reasoning transferPrior only
Low-resource robustnessPrior only

Multimodal

V3.0

undefined metric} other undefined metrics}} · No data

80% interval30.8–69.20/4 Measured dimensionsDesign Arena Website1321.0#4 / 78
Dimensions and evidence
Perception & OCRPrior only
Document & spatial understandingPrior only
Visual reasoningPrior only
Video & grounded actionPrior only
Design Arena Website
LMSpeed rank#4
Score1321.0
UpdatedSep 14, 2026
Confidence2

Instruction following

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Constraint followingPrior only
Structured outputPrior only
Novel-instruction generalizationPrior only
Multi-turn & long instructionsPrior only

OpenRouter endpoints

4 endpoints

Third-party OpenRouter endpoint data, shown separately from LMSpeed measurements. Some 30-minute live performance fields only appear after syncing with an OpenRouter API key.

Provider endpointInputOutput1d uptime30m latency30m throughputContext / output
Azure
azure
$10/M$50/M99.8%undefined tokens / undefined tokens
Anthropic
anthropic
$10/M$50/M99.8%undefined tokens / undefined tokens
Google
google-vertex/global
$10/M$50/M99.5%undefined tokens / undefined tokens
Amazon Bedrock
amazon-bedrock
$10/M$50/Mundefined tokens / undefined tokens

Pricing Comparison

Compare Claude Fable 5.1 API pricing across 184 providers. Prices range from $0.103/M to $219.00/M. PICO API offers the lowest rate at $0.103/M. 4 providers offer free API credits or a free tier.

ProviderHealthModel VariantGroupInput ($/M)Output ($/M)Speed (t/s)First tokenAudit
L1
100%
claude-fable-5-1
claude_max
-20%$8.00/M
-20%$40.00/M
L1
100%
claude-fable-5-1
cc
-64%$3.57/M
Cache read$0.089/M
-64%$17.86/M
L1
100%
claude-fable-5-1
Claude-Corp
-97%$0.338/M
Cache read$0.0084/MCache write$0.422/MCache write 1h$0.675/M
-97%$1.69/M
L1
100%
claude-fable-5-1
default
-86%$1.37/M
Cache read$0.137/MCache write$1.71/MCache write 1h$2.74/M
-86%$6.85/M
L1
100%
claude-fable-5.1
default
$10.27/M
-79%$10.27/M
L1
100%
claude-fable-5-1
default
$10.27/M
-79%$10.27/M
L1
100%
claude-fable-5-1
group_4
-80%$2.00/M
Cache read$0.050/MCache write$2.49/MCache write 1h$3.99/M
-80%$9.98/M
L1
100%
claude-fable-5-1
Claude-Code-1
-95%$0.523/M
Cache read$0.013/M
-95%$2.62/M
L1
100%
claude-fable-5-1
cc-sale
-89%$1.10/M
Cache read$0.110/MCache write$1.37/MCache write 1h$2.19/M
-89%$5.48/M
L1
100%
claude-fable-5-1
claude-MAX1-企业版
-78%$2.23/M
Cache read$0.056/MCache write$2.79/MCache write 1h$4.46/M
-78%$11.14/M
L1
100%
claude-fable-5-1
default
$10.00/M
Cache read$0.250/MCache write$12.50/MCache write 1h$20.00/M
$50.00/M
L1
100%
claude-fable-5-1
claude-cc2
-40%$6.00/M
Cache read$0.150/M
-40%$30.00/M
L1
100%
claude-fable-5-1
performance-max
$10.00/M
Cache read$1.00/MCache write$12.50/MCache write 1h$20.00/M
$50.00/M
L1
100%
claude-fable-5-1
cc逆向3
$12.50/M
Cache read$1.25/M
$62.50/M
L1
100%
claude-fable-5-1
Claude-Entry
-94%$0.600/M
Cache read$0.015/M
-94%$3.00/M
L1
100%
claude-fable-5-1
default
-77%$2.25/M
-77%$11.26/M
L1
100%
anthropic/claude-fable-5.1
default
-28%$7.20/M
-28%$36.02/M
L1
100%
L2
0%
claude-fable-5-1
Claude-MAX(cc专用,仅接cli)
-71%$2.90/M
Cache read$0.072/MCache write$3.63/MCache write 1h$5.80/M
-71%$14.50/M
L1
100%
claude-fable-5-1
ccmax
-62%$3.84/M
Cache read$0.096/MCache write$4.79/MCache write 1h$7.67/M
-62%$19.18/M
L1
100%
anthropic/claude-fable-5.1
default
$10.00/M
$50.00/M
Showing 20 model IDs of 73.

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Frequently Asked Questions

What benchmark data does Claude Fable 5.1 include?
LMSpeed shows Claude Fable 5.1 benchmark context, API price, output speed, first-token latency, and provider data across 188 providers when those signals are available.
What is the Claude Fable 5.1 API price?
Claude Fable 5.1 has pricing from undefined provider} other undefined providers}}, ranging from $0.103/M to $219.00/M. PICO API has the lowest listed price.
What does the Claude Fable 5.1 API pricing table include?
The Claude Fable 5.1 API pricing table compares 188 providers by input price, output price, free tier status, speed, first-token latency, and recent health data when available.
Which provider has the cheapest Claude Fable 5.1 API pricing?
PICO API currently has the lowest listed Claude Fable 5.1 price at $0.103/M across undefined provider} other undefined providers}}.
Is Claude Fable 5.1 API free?
Yes, Claude Fable 5.1 free API options are available through 4 providerundefined other undefined} on LMSpeed, including 兔子API, 兔子API, 兔子API, 兔子API. These providers offer free API credits or a free tier with no per-token charges.
Where can I get Claude Fable 5.1 free API access?
LMSpeed currently lists 4 free API providerundefined other undefined} for Claude Fable 5.1: 兔子API, 兔子API, 兔子API, 兔子API. Check each provider row before using it because free tier limits can change.

Also known as

anthropic/claude-fable-5-1anthropic/claude-fable-5.1anthropic/claude-fable-5.1:batchclaude-fable-5-1claude-fable-5.1

Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.Standard benchmark data may include BenchLM and other public sources.

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