Claude Fable 5.1
Anthropic • API Price Comparison
Claude Fable 5.1 is a large language model by Anthropic with a 1M-token context window. Across the 4 API channels tracked here, input pricing ranges from $2.30–$10.00 per 1M input tokens (USD-normalized); the cheapest is XiuRouter at $2.30 per 1M input tokens. The official channel (Anthropic) charges $10.00 per 1M input tokens and $50.00 per 1M output tokens. Channels reachable from mainland China without a VPN include XycAi. It is also available through subscription plans such as Claude Max, Claude Max (5x), Claude Max (20x). Its Agent Arena net-improvement score is approximately 13.7%. Prices are collected daily from official provider pages and every tracked channel, then cross-checked by a data-accuracy audit.
Model performance benchmarks
Scores retain their original benchmark, version and metric. We do not combine them into a site-wide score; results from different versions are not directly comparable.
Coding agent performance
Artificial Analysis Coding Agent Index: per-task performance, API cost and runtime when this model runs inside different agents (Claude Code, Codex, …). Each configuration is evaluated separately.
💳 Subscription Plans
Access claude-fable-5.1 through these plans, grouped by product line.
💬 Chat subscriptions
3 plansMonthly access to the assistant apps and their model line-up.
Which plan is right for you?
Max: For power users who need extended thinking and highest usage limits
| Usage Level | Tokens/Month | XiuRouter | XycAi | Anthropic | OpenRouter |
|---|---|---|---|---|---|
| 🐣 Light | 0.1M in + 0.1M out | $0.81 | $1.37 | $3.50 | $3.50 |
| 📊 Medium | 1.0M in + 0.5M out | $8.05 | $13.65 | $35.00 | $35.00 |
| 🚀 Heavy | 10.0M in + 5.0M out | $80.50 | $136.50 | $350.00 | $350.00 |
| 🏢 Enterprise | 100.0M in + 50.0M out | $805.00 | $1,365.00 | $3,500.00 | $3,500.00 |
Frequently asked questions about claude-fable-5.1
What is the cheapest API provider for Claude Fable 5.1?
Of the channels tracked here, XiuRouter is the cheapest at $2.30 per 1M input tokens and $11.50 per 1M output tokens (about $2.30 per 1M input). Confirm on the provider's page; figures are updated daily.
What is the official API price of Claude Fable 5.1?
Anthropic lists Claude Fable 5.1 at $10.00 per 1M input tokens and $50.00 per 1M output tokens.
Can I use Claude Fable 5.1 from mainland China?
Yes — these channels are directly reachable from mainland China without a VPN: XycAi. Domestic channels generally support Alipay/WeChat Pay.
What is the context window of Claude Fable 5.1?
Claude Fable 5.1 offers a 1,000,000-token context window.
Which subscription plans include Claude Fable 5.1?
Claude Fable 5.1 is included in these plans: Claude Max, Claude Max (5x), Claude Max (20x). Open a plan for full tier and annual-pricing details.
How often are Claude Fable 5.1 prices updated, and how reliable is the data?
Prices are scraped daily from official pricing pages and every tracked channel, with every significant change recorded in a price-history log. A daily read-only data audit cross-checks each channel against the model producer's published price and flags stale or inconsistent rows for correction.
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