GPT-5.6 Terra vs Claude Sonnet 4.5 (latest)
GPT-5.6 Terra is cheaper on output tokens, while GPT-5.6 Terra offers a larger context window. Choose GPT-5.6 Terra or Claude Sonnet 4.5 (latest) based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.6 Terra | Claude Sonnet 4.5 (latest) |
|---|---|---|
| Provider | GitHub Copilot | GitHub Copilot |
| Input / 1M tokens | $2.00 | $3.00 |
| Output / 1M tokens | $12.00 | $15.00 |
| Context window | 1.1M | 200K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Jul 2026 | Sep 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.