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Claude Fable 5.1 vs GPT 5.6 Luna
Side-by-side comparison of token prices, context windows, and capabilities across official model makers.
| Specification | Claude Fable 5.1 claude-fable-5-1 | GPT 5.6 Luna gpt-5.6-luna |
|---|---|---|
| Official provider | Anthropic | OpenAI |
| Input / 1M | $10$3.50save $6.50 | $0.20$0.07save $0.13 Cheaper |
| Output / 1M | $50$17.50save $32.50 | $1.20$0.42save $0.78 Cheaper |
| Context | 1.05M | 1.05MLarger context |
| Max out | 131K | 128K |
| Capabilities | visiontoolsreasoningcachefile | visiontoolsreasoningcache |
30-day workload (30M input · 80% cached · 3M output) Estimated monthly spend on AivoKey | $157.50 | $3.36 |
| Model details | Claude Fable 5.1 → | GPT 5.6 Luna → |