Claude Fable 5 is Anthropic's language model with a 1.0M context window and up to 128K output tokens, available from 7 providers, starting at $10.00 / 1M input and $50.00 / 1M output. A highly capable Claude LLM optimized for demanding reasoning and long-horizon agentic tasks, with vision, tool-use, and explicit-caching support.
Specifications
Canonical IDanthropic-claude-5-fable
TypeLanguage
StatusActive
CreatorAnthropicAnthropic
Providers
Context Window1.0M tokens
Max Output128K tokens
Input ModalitiesImagePDFText
Output ModalitiesText
Reasoning Effortsdefaultxhigh
Release Date · 4 days ago
Benchmarks
Intelligence Index
Coding Index
GPQA
0.9
#4
HLE
0.5
#1
IFBench
0.6
#92
Time to First Token
59.94s
#482
SciCode
0.6
#1
LCR
0.7
#19
TerminalBench Hard
0.6
#1
TAU2
1.0
#4
Output TPS
62.3
#185

Capabilities

Input3/5
Text
Image
Audio·
Video·
PDF
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities6/13
Reasoning
Adaptive Reasoning·
Function Calling
Parallel Function Calling·
Structured Outputs
Native JSON Schema
Web Search·
URL Context·
Computer Use
Code Execution·
File Search·
Prompt Caching
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandardBatch
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Cache Write 5m
$ / 1M
Cache Write 1h
$ / 1M
Web Search
$ / request
Input
$ / 1M
Output
$ / 1M
Amazon Bedrock logo
Amazon Bedrock
global.anthropic.claude-fable-5
$10.00$50.00$1.00$12.50$20.00N/A
Anthropic logo
Anthropic
claude-fable-5
$10.00$50.00$1.00$12.50$20.00N/A$5.00$25.00
Azure AI Foundry logo
Azure AI Foundry
azure_ai/claude-fable-5
$10.00$50.00$1.00$12.50N/AN/A
Google Vertex AI logo
Google Vertex AI
vertex_ai/claude-fable-5
$10.00$50.00$1.00$12.50N/AN/A
OpenRouter logo
OpenRouter
anthropic/claude-fable-5
$10.00$50.00$1.00$12.50N/A$0.010
Snowflake logo
Snowflake
claude-fable-5
$12.00$60.00N/AN/AN/AN/A$6.00$30.00
Vercel AI Gateway logo
Vercel AI Gateway
anthropic/claude-fable-5
$10.00$50.00$1.00$12.50N/AN/A

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Claude Fable 51.0M$10.00$50.00Current
Claude Fable1.0M$10.00$50.00Available

Other Models

ModelTierReleasedContextInput / 1MOutput / 1M
Claude Mythos 5Mythos1.0M$10.00$50.00
Claude Opus 4.8Opus1.0M$5.00$25.00
Claude Opus 4.8 FastOpus1.0M$10.00$50.00
Claude Opus 4.7 FastOpus1.0M$30.00$150.00
Claude Opus 4.7Opus1.0M$5.00$25.00
Claude Sonnet 4.6Sonnet1.0M$3.00$15.00
Claude Opus 4.6Opus1.0M$5.00$25.00
Claude Opus 4.5Opus410K$5.00$25.00
Claude Haiku 4.5Haiku200K$1.00$5.00
Claude Sonnet 4.5Sonnet1.0M$3.00$15.00

Model IDs

anthropic-claude-5-fable
anthropic.claude-fable-5
anthropic/claude-fable-5
au.anthropic.claude-fable-5
azure_ai/claude-fable-5
claude-fable-5
eu.anthropic.claude-fable-5
global.anthropic.claude-fable-5
publishers/anthropic/models/claude-fable-5
publishers/google/models/claude-fable-5
us.anthropic.claude-fable-5
vertex_ai/claude-fable-5
vertex_ai/claude-fable-5@default