Claude Opus 5.5 (US) vs Grok 4.3
Grok 4.3 is cheaper on output tokens. Choose Claude Opus 5.5 (US) or Grok 4.3 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Claude Opus 5.5 (US) | Grok 4.3 |
|---|---|---|
| Provider | Amazon Bedrock | Amazon Bedrock |
| Input / 1M tokens | $4.40 | $1.25 |
| Output / 1M tokens | $22.00 | $2.50 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | No | No |
| Released | Sep 2026 | Apr 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.