Anthropic: Claude Haiku 4.5 (batch) vs OpenAI: GPT-5.6 Luna (batch)
Based on weekly OpenRouter usage tracked by AI Tier List, OpenAI: GPT-5.6 Luna (batch) ranks #3 overall — ahead of Anthropic: Claude Haiku 4.5 (batch) at #36. OpenAI: GPT-5.6 Luna (batch) is cheaper on input tokens at $0.10/1M vs $0.50/1M for Anthropic: Claude Haiku 4.5 (batch). OpenAI: GPT-5.6 Luna (batch) offers the larger context window at 1.1M tokens.
Anthropic: Claude Haiku 4.5 (batch) vs OpenAI: GPT-5.6 Luna (batch): which should you use?
Choose Anthropic: Claude Haiku 4.5 (batch) if…
On every published figure — price, context, benchmarks — it does not come out ahead of OpenAI: GPT-5.6 Luna (batch).
Choose OpenAI: GPT-5.6 Luna (batch) if…
- It sees more real traffic — #3 overall on OpenRouter's weekly ranking, against #36 for Anthropic: Claude Haiku 4.5 (batch).
- Cheaper to read — $0.10 vs $0.50 per 1M input tokens, which is what dominates long-prompt and RAG workloads.
- Cheaper to write — $0.60 vs $2.50 per 1M output tokens, the line item that decides generation-heavy costs.
- Bigger context window — 1.1M vs 200K tokens.
- It is the newer model — released Jul 2026 against Oct 2025.
Spec Comparison
| Spec | Anthropic: Claude Haiku 4.5 (batch) | OpenAI: GPT-5.6 Luna (batch) |
|---|---|---|
| Author | anthropic | openai |
| Input price (per 1M tokens) | $0.50 | $0.10 |
| Output price (per 1M tokens) | $2.50 | $0.60 |
| Context window | 200K | 1.1M |
| Input modalities | text, image, file | file, image, text |
| Output modalities | text | text |
| AA Intelligence | 29.9 | — |
| AA Coding | 43.9 | — |
| AA Agentic | 16.5 | — |
| Released | Oct 2025 | Jul 2026 |
What Anthropic: Claude Haiku 4.5 (batch) and OpenAI: GPT-5.6 Luna (batch) actually cost to run
On a read-heavy job — 1M tokens in, 100K out — Anthropic: Claude Haiku 4.5 (batch) costs $0.75 and OpenAI: GPT-5.6 Luna (batch) costs $0.16.
Flip the shape — 100K in, 1M out — and it becomes $2.55 for Anthropic: Claude Haiku 4.5 (batch) versus $0.61 for OpenAI: GPT-5.6 Luna (batch).
Both figures are the published per-token rates multiplied out; caching and batch discounts are not included.
Usage Rank by Task
| Task | Anthropic: Claude Haiku 4.5 (batch) | OpenAI: GPT-5.6 Luna (batch) |
|---|---|---|
| Overall | #36 | #3 |
| Multi-step Planning | — | #6 |
| Tool Dispatch | — | #4 |
| Web Search | — | #9 |
| Agent Workflows | — | #7 |
| Classification & Tagging | — | #3 |
| Debugging | — | #7 |
| DevOps Config | — | #6 |
| File Read/Write | — | #6 |
| Frontend UI | — | #5 |
| Code Implementation | — | #5 |
| Repo Analysis | — | #5 |
| Code Review & Security | — | #5 |
| SQL & Database | — | #5 |
| Content Writing | — | #8 |
About Anthropic: Claude Haiku 4.5 (batch) and OpenAI: GPT-5.6 Luna (batch)
Anthropic: Claude Haiku 4.5 (batch)
Built by anthropic · released Oct 2025 · 200K-token context
Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance...
OpenAI: GPT-5.6 Luna (batch)
Built by openai · released Jul 2026 · 1.1M-token context
GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for...
Related comparisons
- Anthropic: Claude Haiku 4.5 (batch) vs DeepSeek: DeepSeek V4 Flash 0731
- Anthropic: Claude Haiku 4.5 (batch) vs Tencent: Hy3
- Anthropic: Claude Haiku 4.5 (batch) vs DeepSeek: DeepSeek V4 Flash 0423
- OpenAI: GPT-5.6 Luna (batch) vs DeepSeek: DeepSeek V4 Flash 0731
- OpenAI: GPT-5.6 Luna (batch) vs Tencent: Hy3
- OpenAI: GPT-5.6 Luna (batch) vs DeepSeek: DeepSeek V4 Flash 0423
Get notified when Anthropic: Claude Haiku 4.5 (batch) or OpenAI: GPT-5.6 Luna (batch) moves
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FAQ
Which is better, Anthropic: Claude Haiku 4.5 (batch) or OpenAI: GPT-5.6 Luna (batch)?
Based on weekly OpenRouter usage tracked by AI Tier List, OpenAI: GPT-5.6 Luna (batch) ranks #3 overall — ahead of Anthropic: Claude Haiku 4.5 (batch) at #36. OpenAI: GPT-5.6 Luna (batch) is cheaper on input tokens at $0.10/1M vs $0.50/1M for Anthropic: Claude Haiku 4.5 (batch). OpenAI: GPT-5.6 Luna (batch) offers the larger context window at 1.1M tokens.
Which is cheaper, Anthropic: Claude Haiku 4.5 (batch) or OpenAI: GPT-5.6 Luna (batch)?
OpenAI: GPT-5.6 Luna (batch) is cheaper at $0.10 per 1M input tokens. Output pricing: Anthropic: Claude Haiku 4.5 (batch) $2.50, OpenAI: GPT-5.6 Luna (batch) $0.60.
Is OpenAI: GPT-5.6 Luna (batch) still ahead of Anthropic: Claude Haiku 4.5 (batch) right now?
Yes. For the week of 2026-08-10, OpenAI: GPT-5.6 Luna (batch) ranks #3 overall on OpenRouter usage against #36 for Anthropic: Claude Haiku 4.5 (batch). Ranks refresh weekly, and the verdict on this page flips if they cross.
Usage ranks are weekly data aggregated by OpenRouter. Prices are USD per 1M tokens.