Claude Fable 5 vs Claude Fable 5.1
Pricing verdict: Claude Fable 5 vs Claude Fable 5.1: pricing is a tie at $10.00/M input and $50.00/M output. There is no direct price edge, so choose based on capabilities and workflow fit.
Direct answer: pricing is a tie. Choose the model that best fits your capabilities, latency, and provider preferences.
Compare API pricing, input and output token costs, context windows, and monthly estimates on one page so you can pick the right model fast.
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Claude Fable 5
Claude Fable 5.1
Cost Differences
Both models cost the same at the default workload.
Quick Recommendation
Direct API pricing is a tie at the default workload: both land around $105.00/month. Choose the model that better fits your workflow.
Feature Comparison
| Feature | Claude Fable 5 | Claude Fable 5.1 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Input Price | $10.00/1M tokens | $10.00/1M tokens |
| Output Price | $50.00/1M tokens | $50.00/1M tokens |
| Context Window | 1,000,000 tokens | 1,000,000 tokens |
| Max Output | 128,000 tokens | 128,000 tokens |
| Category | flagship | flagship |
| Capabilities | textvisionreasoningcode | textvisionreasoningcode |
| Release Date | 6/9/2026 | 9/1/2026 |
Claude Fable 5 vs Claude Fable 5.1: Which Should You Choose?
Choosing between Claude Fable 5 and Claude Fable 5.1 depends on your priorities: cost efficiency, context length, or raw capability. Both models cost the same on input and output tokens, so raw price is a tie.
Both models are in the flagship category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — direct API pricing stays tied, so the real decision is context, latency, and provider fit.
Output costs matter too. Claude Fable 5 charges $50.00/1M output tokens vs $50.00 for Claude Fable 5.1.
Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.
Best Use Cases
Choose Claude Fable 5 when:
- • You're already using Anthropic's API ecosystem
Choose Claude Fable 5.1 when:
- • You're already using Anthropic's API ecosystem
Pros and Caveats at a Glance
Claude Fable 5
- • Input pricing: $10.00/M tokens
- • Output pricing: $50.00/M tokens
- • Context window: 1,000,000 tokens
- • Max output: 128,000 tokens
Watch out for
- • Trade-offs are minor in this matchup.
Claude Fable 5.1
- • Input pricing: $10.00/M tokens
- • Output pricing: $50.00/M tokens
- • Context window: 1,000,000 tokens
- • Max output: 128,000 tokens
Watch out for
- • Trade-offs are minor in this matchup.
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Claude Fable 5 (Anthropic)
Claude Fable 5.1 (Anthropic)
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Sign Up for Anthropic →Frequently Asked Questions
Which is cheaper, Claude Fable 5 or Claude Fable 5.1?▼
What is the context window difference between Claude Fable 5 and Claude Fable 5.1?▼
Which model is better for AI Agent / Agentic Workflows?▼
Which model has better overall pricing for heavy usage?▼
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