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anthropic / Chat

Claude Fable 5.1 High

anthropic/claude-fable-5-1-high

Claude Fable 5.1 with high thinking — deeper reasoning

Catalog status

Enabled

Research checked

2026-10-07

Price / performance

What it costs to get this result

FrontierCode v1.1 (Extended) · Source-reported results, not a composite ranking. Prices use the average of TokenBazaar input and output rates per million tokens; actual spend depends on usage. Test configurations differ.

Claude Fable 5.1 High62.68% · 43 sourced models

Blended price / 1M tokens · log scale

● Current model● Other modelsDashed line: price/score frontier among plotted models
Compare sourced models on this benchmark

Benchmark results

2 reported results

Results are source-attributed, not TokenBazaar measurements. Different tests and thinking variants are not interchangeable.

2 of 2 results

FrontierCode v1.1 (Extended)

Coding · Third-party report

Test conditions and source

Cognition FrontierCode 1.1; Claude Fable 5.1; high effort; claude-code harness; Extended subset (150 tasks). Published weighted rubric score (new_score × 100), not the all-or-nothing pass rate; solution-source violations score zero. Source field new_score=0.6268. Publisher evaluation, not a TokenBazaar measurement; provider effort configuration is not a guarantee of the API's fixed thinking budget.

Tested model: anthropic/claude-fable-5-1-high

Cognition · FrontierCode 1.1 original leaderboard · Checked 2026-10-07

62.68%

FrontierCode v1.1 (Main)

Coding · Third-party report

Test conditions and source

Cognition FrontierCode 1.1; Claude Fable 5.1; high effort; claude-code harness; Main subset (100 tasks). Published weighted rubric score (new_score × 100), not the all-or-nothing pass rate; solution-source violations score zero. Source field new_score=0.5034. Publisher evaluation, not a TokenBazaar measurement; provider effort configuration is not a guarantee of the API's fixed thinking budget.

Tested model: anthropic/claude-fable-5-1-high

Cognition · FrontierCode 1.1 original leaderboard · Checked 2026-10-07

50.34%

Model specifications

Context window

1M

Published provider limit

Maximum output

128K

Published provider limit

Knowledge cutoff

Jun 2026

Upstream model

Input and output modalities

Provider-reported formats; API compatibility is detailed below.

Input

Text
Image

Output

Text
Exact model ID
anthropic/claude-fable-5-1-high
Model type
Chat
Context window
1,000,000 tokens
Maximum output
128,000 tokens
Knowledge cutoff
Jun 2026

A context window is the total conversation budget, not a separate maximum input allowance; generated output and reasoning can use that budget. Published provider limits are not independently tested TokenBazaar request limits.

Versions and thinking levels

Choose from 4 enabled versions. The exact ID determines the version and its price; benchmark scores do not carry over between variants.

Claude Fable 5.1₹480.00 in / ₹2400.00 out per 1M tokens
Claude Fable 5.1 HighSelected₹480.00 in / ₹2400.00 out per 1M tokens
Claude Fable 5.1 Low₹480.00 in / ₹2400.00 out per 1M tokens
Claude Fable 5.1 Max₹480.00 in / ₹2400.00 out per 1M tokens

Features and tool support

TokenBazaar’s exposed interface, not every feature advertised by the provider. “Available” describes the implemented interface, not a successful test of every input or tool.

Reasoning configuration

Adaptive thinking; reasoning and answer share the output budget.

Selected effort: high. Reasoning level is not a measured intelligence or speed score.

Coding and agent workflows

Text/code generation and customer-managed tool loops.

Coding benchmark results do not establish a hosted terminal, sandbox, autonomous browser or guaranteed task success.

Streaming answers

Available

Incremental text through TokenBazaar’s chat endpoint; Claude also has native Messages access.

Customer-defined function tools

Limited

Function schemas and tool results are forwarded to Claude. The chat bridge uses automatic tool selection; your application authorizes and executes every tool.

Forced or named tool selection

Not exposed

The chat bridge selects tools automatically. Native Messages does not expose forced or named tool selection; do not assume a tool will be called every turn.

Images and PDFs

Limited

The chat bridge accepts image/PDF content. Provider input modalities are listed separately; file size, content and model limits still apply.

Hosted web search / browsing

Not exposed

No provider-hosted web search or web-fetch tool is exposed. Customer-owned search can be implemented as an authorized function tool.

Hosted code execution / computer use

Not exposed

No built-in execution environment or computer-control tool is provided. Code generation is not code execution.

Hosted file search / persistent assistants

Not exposed

No hosted file-search index, Assistants endpoint or persistent provider agent is exposed.

Batch / fine-tuning / cached-price discounts

Not exposed

No public batch or fine-tuning endpoint, or separate cached-token discount, is offered here.

Sources and verification

Provider specifications describe the upstream model, not a guarantee of every feature through TokenBazaar. Prices come from the enabled catalog; benchmark results belong to the exact tested model.

Research notes (2)
  • Published provider limits; maximum-capacity requests have not been independently exercised through TokenBaazar. Thinking-level variants use the same provider model; reasoning and answer tokens share the output budget.
  • Benchmark configuration is stated per result. Provider max-effort tests are not measurements of the default medium or xhigh catalog versions. ProgramBench 87.6 is the vendor’s filtered 166-task test, not a generic public score.