Based on weekly OpenRouter usage tracked by AI Tier List, Anthropic: Claude Sonnet 5 ranks #13 overall — ahead of OpenAI: GPT-5.5 at #14. Anthropic: Claude Sonnet 5 is cheaper on input tokens at $2/1M vs $5/1M for OpenAI: GPT-5.5. OpenAI: GPT-5.5 offers the larger context window at 1.1M tokens.
| Anthropic: Claude Sonnet 5 | OpenAI: GPT-5.5 | |
|---|---|---|
| Author | anthropic | openai |
| Input price (per 1M tokens) | $2 | $5 |
| Output price (per 1M tokens) | $10 | $30 |
| Context window | 1M | 1.1M |
| Input modalities | text, image, file | file, image, text |
| Output modalities | text | text |
| AA Intelligence | 53.4 | 54.8 |
| AA Coding | 71.5 | 74.9 |
| AA Agentic | 46.7 | 44.9 |
| Released | Jun 2026 | Apr 2026 |
| Task | Anthropic: Claude Sonnet 5 | OpenAI: GPT-5.5 |
|---|---|---|
| Overall | #13 | #14 |
| Multi-step Planning | — | #7 |
| Agent Workflows | — | #9 |
| Frontend UI | — | #5 |
| Code Review & Security | — | #7 |
| Image Processing | — | #6 |
Usage ranks are weekly data aggregated by OpenRouter. Prices are USD per 1M tokens.
