Claude Fable 5 (batch)
anthropic/claude-fable-5:batch
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding.
Key facts
- Input price
- $5.00 / 1M tokens
- Output price
- $25.00 / 1M tokens
- Context window
- 1M tokens
- Max output
- 128K tokens
- Accepts
- Text, Images, Files
- Returns
- Text
Example: 1,000 requests with 1,000 input and 500 output tokens each would cost about $17.50 (1M input tokens × $5.00 + 0.5M output tokens × $25.00). Estimate your own usage.
Prices are the provider’s own per-token rates with zero markup, from our price list as of Oct 18, 2026. If a call has extra provider charges (images, audio, web search, cached prompts), you pay the reported cost.
Call it from your code
curl https://api.tokenctr.com/v1/chat/completions \
-H "Authorization: Bearer $TOKENCENTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "anthropic/claude-fable-5:batch", "messages": [{"role": "user", "content": "Hello!"}]}'Works with any OpenAI-compatible SDK: set the base URL to https://api.tokenctr.com/v1. Quickstart
Benchmarks
Artificial Analysis
- Intelligence index
- 49.6
- Coding index
- 76.5
- Agentic index
- 50.7
Design Arena
| Category | Rank | Elo | Win rate |
|---|---|---|---|
| Agents: Agentic game dev | 1 | 1285 | 61.9% |
| Agents: Agentic HTML slides | 1 | 1254 | 59.4% |
| Agents: Agentic slides (HTML) | 1 | 1252 | 59.5% |
| Agents: HTML slides | 1 | 1277 | 63.1% |
| Agents: Android native | 2 | 1297 | 65.1% |
| Agents: Godot game dev | 2 | 1292 | 64.3% |
| Models: ASCII art | 2 | 1330 | 68% |
| Agents: Slides (python-pptx) | 3 | 1295 | 61.4% |
| Models: SVG | 4 | 1302 | 62.6% |
| Agents: Mobile apps | 5 | 1260 | 60.4% |
| Agents: Full-stack | 6 | 1280 | 58.2% |
| Agents: Web apps | 8 | 1254 | 56.4% |
| Models: Game dev | 10 | 1339 | 60.8% |
| Models: Code | 12 | 1312 | 57.7% |
| Models: UI components | 12 | 1318 | 58.1% |
| Models: Data visualization | 13 | 1306 | 57.5% |
| Models: 3D | 15 | 1319 | 61.8% |
| Models: Websites | 16 | 1297 | 56% |
Source: Artificial Analysis indexes and Design Arena results as published in OpenRouter’s model data, fetched Oct 15, 2026. Higher is better. Not measured by TokenCenter. See all rankings.