AmazonReasoning modelGPT-5.6 Luna (US)
GPT-5.6 Luna (US) is an Amazon proprietary reasoning model, released 9 Jul 2026. It is not yet ranked: no independent benchmark results so far, only pricing and metadata. At $0.495 per million tokens blended it is cheaper than most ranked models.
- Blended price
- $0.495/M
- $0.220 in · $1.32 out
- Output speed
- –
- First answer
- –
- Context
- 1.1M
- Released
- 9 Jul 2026
No independent quality benchmark results yet — only pricing and metadata.
What a task costs
Estimates from list price, output speed and time to first answer for the best configuration. “With caching” assumes three-quarters of the input is served from the prompt cache at $0.022 per 1M. Reasoning tokens are not modelled.
| Workload | Tokens in / out | Cost | With caching | Time |
|---|---|---|---|---|
| Chat reply | 400 / 300 | $0.0005 | $0.0004 | – |
| Summarise a 30-page report | 12,000 / 600 | $0.0034 | $0.0017 | – |
| Code edit | 6,000 / 1,500 | $0.0033 | $0.0024 | – |
| Agentic coding session | 60,000 / 4,000 | $0.018 | $0.0096 | – |
| Structured extraction | 2,000 / 200 | $0.0007 | $0.0004 | – |
See also
Data as of 13 Sept 2026. Compare with another model.
Cite as: BenchLeader, “GPT-5.6 Luna (US): benchmarks, pricing, speed and rank”, https://www.benchleader.com/models/us-openai-gpt-5-6-luna, data as of 13 Sept 2026.