Today's price · per 1M tokens
Input
$10.00
per 1M tokens
Output
$50.00
per 1M tokens
Blended
$20.00
blended $/1M — 3:1 weighted input:output
Cached input
$1.00
10% of input — prompt caching
Price receipt
We read Anthropic's own pricing page on and found Claude Fable 5 listed with a price on the same row — that read is where the number above comes from. We keep the page text we read; its content hash is fc6089e9bc.
Overview
Anthropic's flagship Mythos-class model for ambitious, long-running work — strong at coding, knowledge work, vision, and computer use, with a 1M-token context window and up to 128K output tokens. $10/$50 per 1M tokens (90% prompt-caching discount on input).
Capabilities
struck through = not supportedBenchmark performance
accuracy % · higher is better- AA Intelligence Index: 49.7 (Artificial Analysis composite across reasoning, knowledge and coding evals)
- AA-Omniscience Index: 43.3 (−100–100)
- GDPval-AA v2: 1631.5 ELO (Real-world work tasks, human baseline = 1000)
- LMSYS Chatbot Arena: 1505.7 ELO (Human preference)
- Ranks #2 of 84 benchmarked models by average score
- Ranks #6 of 181 comparably-measured models by percentile score, across 11 independent measurements
- Ranks #169 of 181 comparably-tested models by normalized performance per dollar
- Strongest at OSWorld-Verified — 85%, #1 of 15
Source: Vellum LLM Leaderboard · updated · See full rankings →
Specifications
- Provider
- Anthropic
- Context window
- 1M tokens
- Modality
- text, image
- Parameters
- Proprietary
- Open source
- No — proprietary
- Released
- Status
- Current
- Last updated
- Tags
Availability verified: — listed on Anthropic's own page