GPT-5.6 Luna · OpenAI
See the official pricing source for billing conditions.
Official pricing sourceLast verified:
All tiers and model details →OpenAI vs DeepSeek. Compare a low input rate with DeepSeek peak-hour pricing; off-peak is not assumed.
USD token-only estimates using each offering’s published default tier. 1M tokens are an aggregate workload, not a single request. Cache savings, batch discounts, long-context surcharges, tools, taxes and negotiated rates are excluded. Tokenizers and capabilities may differ; lower price does not establish equivalent quality.
OpenAI · GPT-5.6 Luna is 20.5% cheaper for this workload. Absolute difference: $0.36.
| Metric | GPT-5.6 LunaOpenAI | DeepSeek V4 FlashDeepSeek |
|---|---|---|
| Input / 1M tokens | $0.20 | $0.44 |
| Output / 1M tokens | $1.20 | $1.32 |
| Cached input / 1M | $0.02 | $0.014 |
| Context window | 1,050,000 | 1,000,000 |
| Maximum output | 128,000 | 384,000 |
| 1M input + 1M output | $1.40 | $1.76 |
| Default pricing basis | standard | peak |
| Last verified (UTC) | 2026-09-04T18:24:25.168Z | 2026-09-04T18:24:25.238Z |
Each calculator uses the same default-tier assumption described above.
See the official pricing source for billing conditions.
Official pricing sourceLast verified:
All tiers and model details →DeepSeek V4 Flash
Official pricing sourceLast verified:
All tiers and model details →