Claude Haiku 4.5 vs GPT-5.6 Luna
Facts only. This page does not pick a winner. For a picked winner, see the use case comparison on Tools.
| Claude Haiku 4.5 | GPT-5.6 Luna | |
|---|---|---|
| API model IDs | claude-haiku-4-5-20251001, claude-haiku-4-5 | gpt-5.6-luna |
| Context window | 200,000 | 1,050,000 |
| Lifecycle | active | active |
| License | proprietary | proprietary |
| Trains on API data | No | No |
| Zero data retention | on-request | on-request |
| Input per 1M tokens | $1 (verified 2026-09-08) | $0.2 (verified 2026-09-08) |