GPT OSS 120B vs Claude Haiku 4.5 (latest)
GPT OSS 120B is cheaper on output tokens, while Claude Haiku 4.5 (latest) offers a larger context window. Choose GPT OSS 120B 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 OSS 120B | Claude Haiku 4.5 (latest) |
|---|---|---|
| Provider | Opper | Opper |
| Input / 1M tokens | $1.16 | $1.10 |
| Output / 1M tokens | $4.88 | $5.50 |
| Context window | 128K | 200K |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Aug 2025 | Oct 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.