Model profile
Anthropic
New in 2026

Anthropic: Claude Fable 5.1

Anthropic: Claude Fable 5.1 is a premium-priced multimodal generalist from Anthropic with heavy runtime profile, large context posture, and the clearest fit around long-context research / coding.

Best for: Long-context research / CodingHeavy latencyLarge contextPremium pricing
Intelligence
65.7

Benchmark blend

Coding
81.6

Dev workflow signal

Context
1000K Tokens

Large

Input Price
$10.00

Premium tier

Decision snapshot
62

Anthropic: Claude Fable 5.1 currently reads as a premium multimodal option with large context and a heavy runtime profile.

Overall profile
Selective fit
Best for
Long-context research / Coding
Latency tier
Heavy
Price tier
Premium
Source coverage
OpenRouterArtificial AnalysisVision signal

Decision Strip

Decision rail before the raw tables

Core buy-side signals stay in one pass. The rest of the page expands only after intelligence, speed, context, and price are clear.

Intelligence
65.7
66

General reasoning and benchmark headroom.

Competitive
Speed
71 tok/s
25

TTFT 142.27s

Limited
Context
1000K Tokens
100

How much prompt and task state can stay in view.

Above average
Price
$10.00
38

$50.00 output / 1M

Expensive

Editorial Profile

Anthropic: Claude Fable 5.1 in one narrative

Positioning, tradeoffs, and fit are consolidated into one read instead of repeating the same story across separate cards.

Selective fitCoding score 82Math score N/AVision enabled

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...

Identity

Anthropic multimodal profile

Positioning

Long-context research / Coding with large context and heavy runtime.

Cost posture

Premium spend profile. Best when the upside justifies tighter budget control.

Strengths
  • Coding indicators point to a strong developer workflow fit.

  • Large context headroom supports repo-wide prompts and long research sessions.

  • Vision-capable routing opens up multimodal review and extraction workflows.

Tradeoffs
  • Pricing sits in premium territory, so bulk usage needs tighter cost controls.

  • Latency profile is better for deliberate runs than rapid back-and-forth chat.

Best fit
  • Code generation, refactors, test writing, and tool-assisted debugging.

  • General reasoning, analysis, and research-heavy assistants.

  • Image-grounded review, multimodal extraction, and UI audit workflows.

  • Long-context summarization, repo analysis, and policy or document review.

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Context
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Input Price
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Context
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Intelligence
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Context
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Input Price
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Benchmarks

Grouped by job-to-be-done

Only benchmark categories with actual signal are shown. Secondary values stay as simple definitions instead of nested micro-cards.

General intelligence

Broad reasoning, knowledge depth, and flagship benchmark posture.

Intelligence Index
65.7
GPQA
93.7%
HLE
59.1%
Coding

Software implementation, debugging quality, and coding benchmark signal.

Coding Index
81.6
SciCode
62.0%
Agent / tool use

Long-horizon execution quality and interactive benchmark evidence.

LCR
80.0%

Extra benchmark cuts are not available for this category yet.

Specs & Pricing

Technical snapshot and cost posture

Specs stay neutral, pricing gets emphasis through values rather than extra containers. Raw provider internals remain in metadata at the end.

Technical snapshot
Context Window
1000K Tokens
Vision
Enabled
Modalities
file, image, text
Tokenizer
Claude
Max Completion
128000
Moderation
Yes
Supported Parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstoolsverbosity
Input Modalities
fileimagetext
Output Modalities
text
Price architecture
Input
per 1M input tokens
$10.00
Output
per 1M output tokens
$50.00
Blended
AA 3:1 mix
$20.00

This model trades into premium territory. It makes sense when capability upside matters more than raw volume efficiency.

OR Web Search Price
$0.0100
OR Cache Read
$0.00
OR Cache Write
$0.00

Metadata

Raw source tables at the end

Verification details remain available, but the page no longer forces them ahead of the editorial read.