GPT-6 Luna vs Grok 3 Mini
Both have similar output pricing, while GPT-6 Luna offers a larger context window. Choose GPT-6 Luna or Grok 3 Mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-6 Luna | Grok 3 Mini |
|---|---|---|
| Provider | OpenAI | Poe |
| Input / 1M tokens | $0.10 | $0.30 |
| Output / 1M tokens | $0.50 | $0.50 |
| Context window | 1.1M | 131K |
| Parameters | — | — |
| Open weights | — | No |
| Released | — | Apr 2025 |
| GPQA Diamond score | 90.5 | — |
| LMArena (Chatbot Arena) Elo score | 1392 | 1370 |
| LMArena WebDev Elo score | 1582 | — |
| LMArena Vision Elo score | 1217 | — |
| Epoch Capabilities Index score | 156 | 140 |
| Aider Polyglot score | — | 49.3 |
FAQ
Is GPT-6 Luna or Grok 3 Mini cheaper?
GPT-6 Luna and Grok 3 Mini have comparable output pricing.
Which has the larger context window, GPT-6 Luna or Grok 3 Mini?
GPT-6 Luna has the larger context window (1.1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.