AI models / Compare
Claude Haiku 5.5 vs GPT-6 Luna
Claude Haiku 5.5: Anthropic's fastest model, for high-volume, latency-sensitive tasks. GPT-6 Luna: OpenAI's lowest-cost GPT-6 model.
| Spec | Claude Haiku 5.5 | GPT-6 Luna |
|---|---|---|
| Provider | Anthropic | OpenAI |
| API model ID | claude-haiku-5-5 | gpt-6-luna |
| API price (standard) | from $0.10 in / from $0.50 out per 1M tokens | $0.10 in / $0.50 out per 1M tokens |
| Pricing note | Batch API is 50% off. | Short-context pricing up to 272K input tokens; higher long-context rates above that. |
| Context window | 1M tokens | Not stated |
| Max output | 128K tokens | Not stated |
| Weights | Closed (API only) | Closed (API only) |
Figures from each provider's official docs, checked 2026-10-15. Benchmarks and real-world quality vary by task, so test both on your own prompts.