anthropic / text-generation API-only released 2026-06-09

Claude Fable 5

Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...

Input / 1M
$10.00
Output / 1M
$50.00
Context
1M
AA Intelligence
49.6
Closed weights — available only as a hosted API text + image + file → text View on OpenRouter ↗

Pricing

via OpenRouter · USD per 1M tokens · synced 2026-10-24
$10.00
input / 1M
$50.00
output / 1M
$1.00
cached input / 1M
$60.00
1M in + 1M out
:batch variant $5.00 in · $25.00 out
Context window
1,000,000 tokens
Max output
128,000 tokens
Providers
5
Cheapest provider
Amazon Bedrock · $10.00 / $50.00
Best throughput
—
AA Intelligence / Coding / Agentic
49.6 / 76.5 / 50.7
✓ Tool calling ✓ Reasoning ✓ Structured outputs ✓ Image input ✓ File input ✗ Audio input ✓ Prompt caching

Price history

tracking started — chart appears after 7 days of snapshots (6 recorded)
Current: $10.00 input · $50.00 output per 1M tokens

Benchmarks

Third-party indices as published through OpenRouter — Artificial Analysis and Design Arena. Not measured by us.

AA Intelligence Index
49.6
AA Coding Index
76.5
AA Agentic Index
50.7
Design Arena
CategoryEloWin %Rank
agenticgamedev 1285 61.9% #1
agentichtmlslides 1254 59.4% #1
agenticslides(html) 1252 59.5% #1
androidnative 1285 65.1% #2
fullstack 1280 58.2% #6
godotgamedev 1292 64.3% #2
htmlslides 1173 63.1% #4
mobileapps 1264 60.4% #6
python-pptxslides 1250 61.4% #4
webapps 1261 56.3% #11
3d 1319 61.8% #16
asciiart 1329 68.1% #2
codecategories 1310 57.6% #12
dataviz 1304 57.5% #13
gamedev 1335 60.8% #10
svg 1303 62.6% #4
uicomponent 1316 58.1% #12
website 1296 56% #17

Providers

5 providers · per 1M tokens · last 30 min metrics
ProviderQuantContextInputOutputUptimeTok/s
Amazon Bedrock unknown 1M $10.00 $50.00 — —
Anthropic unknown 1M $10.00 $50.00 100% —
Azure unknown 1M $10.00 $50.00 — —
Claude Platform on AWS unknown 1M $10.00 $50.00 — —
Google unknown 1M $10.00 $50.00 — —
Google unknown 1M $11.00 $55.00 — —
Provider data from OpenRouter's endpoint listing, refreshed daily.

Specifications

Organisation
anthropic
Released on OpenRouter
2026-06-09
Context window
1,000,000 tokens
Max output
128,000 tokens
Input
text, image, file
Output
text
Tokenizer
Claude
Moderated by provider
Yes
OpenRouter id
anthropic/claude-fable-5
Compare with
Prices, context and providers from the public OpenRouter API, snapshotted daily; benchmark indices from Artificial Analysis. See /methodology.