Based on weekly OpenRouter usage tracked by AI Tier List, Anthropic: Claude Sonnet 4.6 ranks #11 overall — ahead of OpenAI: GPT-5.5 at #14. Anthropic: Claude Sonnet 4.6 is cheaper on input tokens at $3/1M vs $5/1M for OpenAI: GPT-5.5. OpenAI: GPT-5.5 offers the larger context window at 1.1M tokens.
| Anthropic: Claude Sonnet 4.6 | OpenAI: GPT-5.5 | |
|---|---|---|
| Author | anthropic | openai |
| Input price (per 1M tokens) | $3 | $5 |
| Output price (per 1M tokens) | $15 | $30 |
| Context window | 1M | 1.1M |
| Input modalities | text, image, file | file, image, text |
| Output modalities | text | text |
| AA Intelligence | 47.2 | 54.8 |
| AA Coding | 63.0 | 74.9 |
| AA Agentic | 40.8 | 44.9 |
| Released | Feb 2026 | Apr 2026 |
| Task | Anthropic: Claude Sonnet 4.6 | OpenAI: GPT-5.5 |
|---|---|---|
| Overall | #11 | #14 |
| Multi-step Planning | — | #7 |
| Web Search | #9 | — |
| Agent Workflows | — | #9 |
| Frontend UI | — | #5 |
| Code Review & Security | — | #7 |
Usage ranks are weekly data aggregated by OpenRouter. Prices are USD per 1M tokens.
| Content Writing | #4 | — |
| Image Processing | #7 | #6 |
