Anthropic: Claude Opus 4.1 vs OpenAI: GPT-5
On input price, OpenAI: GPT-5 is ~12.0× cheaper. Verified 2026-08-23.
| Metric | Anthropic: Claude Opus 4.1 | OpenAI: GPT-5 |
|---|---|---|
| Input / 1M | $15.00 | $1.25 |
| Output / 1M | $75.00 | $10.00 |
| Cache read / 1M | $1.50 | $0.125 |
| Context window | 200K | 400K |
| Max output | 32K | 128K |
Monthly cost by workload
| Workload | Anthropic: Claude Opus 4.1 | OpenAI: GPT-5 | Cheaper |
|---|---|---|---|
| Chatbot | $420.00 | $50.00 | OpenAI: GPT-5 |
| Coding agent | $1350.00 | $150.00 | OpenAI: GPT-5 |
| RAG pipeline | $2925.00 | $300.00 | OpenAI: GPT-5 |
Full details: Anthropic: Claude Opus 4.1 pricing · OpenAI: GPT-5 pricing