GPT-5.6 Terra · OpenAI
See the official pricing source for billing conditions.
Official pricing sourceLast verified:
All tiers and model details →OpenAI vs Anthropic. Compare two direct-provider quotes with similar input rates; quality is not inferred from price.
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.
Anthropic · Claude Sonnet 5 is 14.3% cheaper for this workload. Absolute difference: $2.00.
| Metric | GPT-5.6 TerraOpenAI | Claude Sonnet 5Anthropic |
|---|---|---|
| Input / 1M tokens | $2.00 | $2.00 |
| Output / 1M tokens | $12.00 | $10.00 |
| Cached input / 1M | $0.20 | Not published |
| Context window | 1,050,000 | Not published |
| Maximum output | 128,000 | Not published |
| 1M input + 1M output | $14.00 | $12.00 |
| Default pricing basis | standard | standard |
| Last verified (UTC) | 2026-09-04T18:24:25.246Z | 2026-09-04T18:24:25.230Z |
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 →Anthropic Claude Sonnet 5
Official pricing sourceLast verified:
All tiers and model details →