Anthropic: Claude Sonnet 4.6 (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 Sonnet 4.6 (batch) at #18. OpenAI: GPT-5.6 Luna (batch) is cheaper on input tokens at $0.10/1M vs $1.50/1M for Anthropic: Claude Sonnet 4.6 (batch). OpenAI: GPT-5.6 Luna (batch) offers the larger context window at 1.1M tokens.
Anthropic: Claude Sonnet 4.6 (batch) vs OpenAI: GPT-5.6 Luna (batch): which should you use?
Choose Anthropic: Claude Sonnet 4.6 (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 #18 for Anthropic: Claude Sonnet 4.6 (batch).
- Cheaper to read — $0.10 vs $1.50 per 1M input tokens, which is what dominates long-prompt and RAG workloads.
- Cheaper to write — $0.60 vs $7.50 per 1M output tokens, the line item that decides generation-heavy costs.
- Bigger context window — 1.1M vs 1M tokens.
- It is the newer model — released Jul 2026 against Feb 2026.
Spec Comparison
| Spec | Anthropic: Claude Sonnet 4.6 (batch) | OpenAI: GPT-5.6 Luna (batch) |
|---|---|---|
| Author | anthropic | openai |
| Input price (per 1M tokens) | $1.50 | $0.10 |
| Output price (per 1M tokens) | $7.50 | $0.60 |
| Context window | 1M | 1.1M |
| Input modalities | text, image, file | file, image, text |
| Output modalities | text | text |
| AA Intelligence | 48.4 | — |
| AA Coding | 63.0 | — |
| AA Agentic | 42.1 | — |
| Released | Feb 2026 | Jul 2026 |
What Anthropic: Claude Sonnet 4.6 (batch) and OpenAI: GPT-5.6 Luna (batch) actually cost to run
On a read-heavy job — 1M tokens in, 100K out — Anthropic: Claude Sonnet 4.6 (batch) costs $2.25 and OpenAI: GPT-5.6 Luna (batch) costs $0.16.
Flip the shape — 100K in, 1M out — and it becomes $7.65 for Anthropic: Claude Sonnet 4.6 (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 Sonnet 4.6 (batch) | OpenAI: GPT-5.6 Luna (batch) |
|---|---|---|
| Overall | #18 | #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 | #9 | #8 |
About Anthropic: Claude Sonnet 4.6 (batch) and OpenAI: GPT-5.6 Luna (batch)
Anthropic: Claude Sonnet 4.6 (batch)
Built by anthropic · released Feb 2026 · 1M-token context
Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with...
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 Sonnet 4.6 (batch) vs DeepSeek: DeepSeek V4 Flash 0731
- Anthropic: Claude Sonnet 4.6 (batch) vs Tencent: Hy3
- Anthropic: Claude Sonnet 4.6 (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 Sonnet 4.6 (batch) or OpenAI: GPT-5.6 Luna (batch) moves
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FAQ
Which is better, Anthropic: Claude Sonnet 4.6 (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 Sonnet 4.6 (batch) at #18. OpenAI: GPT-5.6 Luna (batch) is cheaper on input tokens at $0.10/1M vs $1.50/1M for Anthropic: Claude Sonnet 4.6 (batch). OpenAI: GPT-5.6 Luna (batch) offers the larger context window at 1.1M tokens.
Which is cheaper, Anthropic: Claude Sonnet 4.6 (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 Sonnet 4.6 (batch) $7.50, OpenAI: GPT-5.6 Luna (batch) $0.60.
Is OpenAI: GPT-5.6 Luna (batch) still ahead of Anthropic: Claude Sonnet 4.6 (batch) right now?
Yes. For the week of 2026-08-10, OpenAI: GPT-5.6 Luna (batch) ranks #3 overall on OpenRouter usage against #18 for Anthropic: Claude Sonnet 4.6 (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.