GPT-6 Luna (US) vs Grok 4.3
GPT-6 Luna (US) is cheaper on output tokens, while GPT-6 Luna (US) offers a larger context window. Choose GPT-6 Luna (US) or Grok 4.3 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-6 Luna (US) | Grok 4.3 |
|---|---|---|
| Provider | Amazon Bedrock | Amazon Bedrock |
| Input / 1M tokens | $0.11 | $1.25 |
| Output / 1M tokens | $0.55 | $2.50 |
| Context window | 1.1M | 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.