tokevenClaude Fable 5.1 vs GPT 5.6 Terra
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Fable 5.1
FlagshipGPT 5.6 Terra
Mid-tierQuality
Task confidence comparison
Guidance
When to use Claude Fable 5.1 vs GPT 5.6 Terra
Choose Claude Fable 5.1 when...
- -You need strong reasoning (confidence 92 vs 91)
- -You need strong creative writing (confidence 78 vs 67)
- -You need strong code generation (confidence 74 vs 64)
- -You need strong summarization (confidence 71 vs 64)
- -You need a larger context window (1M vs 922K)
Choose GPT 5.6 Terra when...
- -Cost matters: 80% cheaper on input tokens
At scale
Cost at scale
FAQ
When should I use Claude Fable 5.1 instead of GPT 5.6 Terra?
Claude Fable 5.1 outperforms GPT 5.6 Terra for Code Generation, Summarization, Reasoning. It costs $10.00/$50.00 per million tokens (input/output).
Is GPT 5.6 Terra cheaper than Claude Fable 5.1?
Yes. GPT 5.6 Terra input costs $2.00/MTok vs $10.00/MTok for Claude Fable 5.1, saving 80% on input.
What are the context window sizes for Claude Fable 5.1 and GPT 5.6 Terra?
Claude Fable 5.1 has a 1M token context window. GPT 5.6 Terra has a 922K token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How Claude Fable 5.1 and GPT 5.6 Terra stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.