GPT-5.3 Chat (latest) vs grok-4-1-fast-reasoning
grok-4-1-fast-reasoning is cheaper on output tokens, while grok-4-1-fast-reasoning offers a larger context window. Choose GPT-5.3 Chat (latest) or grok-4-1-fast-reasoning based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.3 Chat (latest) | grok-4-1-fast-reasoning |
|---|---|---|
| Provider | 302.AI | 302.AI |
| Input / 1M tokens | $1.75 | $0.20 |
| Output / 1M tokens | $14.00 | $0.50 |
| Context window | 128K | 2M |
| Parameters | — | — |
| Open weights | No | No |
| Released | Mar 2026 | Nov 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.