AI model
anthropic/claude-fable-5.1
Anthropic: Claude Fable 5.1 is a 1,000,000-token model served on Composite at $12.5 per million tokens in and $62.5 per million tokens out.
Try in Playground| Model ID | anthropic/claude-fable-5.1 |
|---|---|
| Provider | cv11 |
| Context window | 1,000,000 tokens |
| Accepts | text, image, file |
| Returns | text |
| Input price | $12.5 per million tokens |
| Output price | $62.5 per million tokens |
| Prompt caching | Supported — cached input is billed at the provider's cache rate, on credits and plans alike |
| Web search | $0.0125 per result |
| Thinking | Always on for this model |
| Moderated | Yes - by the provider |
| Cost on a monthly plan | About 130 plan credits per typical call (8k in, 1k out) |
| Routing endpoints | 8 (base plus 7 routing variants) |
Make a Composite API key and type anthropic/claude-fable-5.1 as the model name. JanitorAI takes the full URL https://composite.lucidity.sh/v1/chat/completions; SillyTavern, ChubAI, Agnai and RisuAI take https://composite.lucidity.sh/v1. It runs on credits, a plan, or your own provider key.
JanitorAI setup · SillyTavern setup · Best Janitor AI proxies compared
This model has not carried enough traffic on Composite yet to publish a success rate, a latency figure or a traffic rank. The numbers appear here once it has.
The same model behind 7 alternative endpoints. Call the id directly to pin a route; the base id above picks for you.
| Route | Model ID | Provider | Price |
|---|---|---|---|
| Normal | anthropic/claude-fable-5.1-normal |
cv11 | $12.5 per million tokens input · $62.5 per million tokens output |
| Normal + cheapThink | anthropic/claude-fable-5.1-normal:cheapThink |
cv11 | $12.5 per million tokens input · $62.5 per million tokens output |
| Cheapest provider | anthropic/claude-fable-5.1:cheapest-provider |
Azure | $12.5 per million tokens input · $62.5 per million tokens output |
| Cheapest provider + cheapThink | anthropic/claude-fable-5.1:cheapest-provider:cheapThink |
Azure | $12.5 per million tokens input · $62.5 per million tokens output |
| cheapThink | anthropic/claude-fable-5.1:cheapThink |
cv11 | $12.5 per million tokens input · $62.5 per million tokens output |
| Fast | anthropic/claude-fable-5.1:fast |
Azure | $12.5 per million tokens input · $62.5 per million tokens output |
| Fast + cheapThink | anthropic/claude-fable-5.1:fast:cheapThink |
Azure | $12.5 per million tokens input · $62.5 per million tokens output |
$12.5 per million tokens input · $62.5 per million tokens output
Credits pay the provider’s price plus 25%; cache hits cost less.
On a monthly plan, a typical call (8k tokens in, 1k out) uses about 130 plan credits, at the provider's own price.
cv11
Claude models are widely regarded for nuanced, in-character writing and for following detailed system prompts and character cards closely.
With a 1,000,000-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.
It is priced for quality-sensitive scenes, where writing quality and instruction-following matter more than minimizing per-message cost.
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...
Supplied by cv11, not written by Composite.
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