GPT-5.5 Pro vs Claude Haiku 4.5 (latest)
Claude Haiku 4.5 (latest) is cheaper on output tokens, while GPT-5.5 Pro offers a larger context window. Choose GPT-5.5 Pro or Claude Haiku 4.5 (latest) based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.5 Pro | Claude Haiku 4.5 (latest) |
|---|---|---|
| Provider | Opper | Opper |
| Input / 1M tokens | $30.00 | $1.10 |
| Output / 1M tokens | $180.00 | $5.50 |
| Context window | 1.1M | 200K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Apr 2026 | Oct 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.