Claude Haiku 4.5 vs GPT-5.6 Luna
GPT-5.6 Luna is ~76% cheaper than Claude Haiku 4.5 on output tokens. Both are capability tier 5. GPT-5.6 Luna has the larger context window.
| Claude Haiku 4.5 | GPT-5.6 Luna | |
|---|---|---|
| Vendor | Anthropic | OpenAI |
| Capability tier | 5/8 | 5/8 |
| Size class | FAST | FAST |
| Parameters | — | — |
| Context window | 200,000 | 1,050,000 ✓ |
| Input $/M | $1 | $0.20 |
| Output $/M | $5 | $1.20 ✓ |
| Cached input $/M | $0.10 | $0.10 |
Which should you choose?
Both sit at capability tier 5, so GPT-5.6 Luna is usually the better value at ~76% lower output cost, and it also carries the larger 1,050,000-token context window. Because they're the same tier, benchmark both on your own prompts before committing — list price rarely predicts task quality.
FAQ
Is Claude Haiku 4.5 cheaper than GPT-5.6 Luna?
GPT-5.6 Luna is the cheaper of the two on output tokens ($1.20/M vs $5/M), about 76% less.
Claude Haiku 4.5 vs GPT-5.6 Luna: which has a bigger context window?
GPT-5.6 Luna has the larger context window (1,050,000 tokens).
Which is more capable, Claude Haiku 4.5 or GPT-5.6 Luna?
Both sit at the same capability tier (5/8) — pick on price, context, or benchmark them on your prompts.
Claude Haiku 4.5 or GPT-5.6 Luna: which should I use?
Both sit at capability tier 5, so GPT-5.6 Luna is usually the better value at ~76% lower output cost, and it also carries the larger 1,050,000-token context window. Because they're the same tier, benchmark both on your own prompts before committing — list price rarely predicts task quality.
How much more does Claude Haiku 4.5 cost than GPT-5.6 Luna?
At 10M input + 10M output tokens per month, Claude Haiku 4.5 runs about $60.00 and GPT-5.6 Luna about $14.00 — a difference of $46.00 per month at that volume.
Settle it on your own prompts
List prices only go so far — benchmark Claude Haiku 4.5 and GPT-5.6 Luna on your actual workload for measured cost, latency and quality.
Pricing and specs maintained by Mintok's catalog watchers from public sources. Not investment advice. Methodology.