Anthropic: Claude Opus 4 alternatives
Ranked by capability overlap, similar context window, and similar price tier. Cross-vendor options are weighted higher than same-provider alternatives.
See also: Anthropic: Claude Opus 4 model details · Claude 4 family · Anthropic provider page
Top 15 alternatives
| # | Model | Provider | Why | Context | Input price / 1M | Compare |
|---|---|---|---|---|---|---|
| 1 | OpenAI: GPT-5 Image | OpenAI | shares reasoning, tool-use, vision · similar price tier | 400K Long context (128K+) | $10.00 Premium | vs → |
| 2 | OpenAI: GPT-5 Pro | OpenAI | shares reasoning, tool-use, vision · similar price tier | 400K Long context (128K+) | $15.00 Premium | vs → |
| 3 | OpenAI: o1 | OpenAI | shares reasoning, tool-use, vision · similar price tier | 200K Long context (128K+) | $15.00 Premium | vs → |
| 4 | OpenAI: o3 Deep Research | OpenAI | shares reasoning, tool-use, vision · similar price tier | 200K Long context (128K+) | $10.00 Premium | vs → |
| 5 | Mistral: Mistral Small 4 | Mistral AI | shares reasoning, tool-use, vision · similar context window | 262K Long context (128K+) | $0.15 Budget | vs → |
| 6 | OpenAI: GPT-5 | OpenAI | shares reasoning, tool-use, vision · similar context window | 400K Long context (128K+) | $1.25 Standard | vs → |
| 7 | OpenAI: GPT-5 Codex | OpenAI | shares reasoning, tool-use, vision · similar context window | 400K Long context (128K+) | $1.25 Standard | vs → |
| 8 | OpenAI: GPT-5 Image Mini | OpenAI | shares reasoning, tool-use, vision · similar context window | 400K Long context (128K+) | $2.50 Standard | vs → |
| 9 | OpenAI: GPT-5 Mini | OpenAI | shares reasoning, tool-use, vision · similar context window | 400K Long context (128K+) | $0.25 Budget | vs → |
| 10 | OpenAI: GPT-5 Nano | OpenAI | shares reasoning, tool-use, vision · similar context window | 400K Long context (128K+) | $0.05 Budget | vs → |
| 11 | OpenAI: GPT-5.1 | OpenAI | shares reasoning, tool-use, vision · similar context window | 400K Long context (128K+) | $1.25 Standard | vs → |
| 12 | OpenAI: GPT-5.1-Codex | OpenAI | shares reasoning, tool-use, vision · similar context window | 400K Long context (128K+) | $1.25 Standard | vs → |
| 13 | OpenAI: GPT-5.1-Codex-Max | OpenAI | shares reasoning, tool-use, vision · similar context window | 400K Long context (128K+) | $1.25 Standard | vs → |
| 14 | OpenAI: GPT-5.1-Codex-Mini | OpenAI | shares reasoning, tool-use, vision · similar context window | 400K Long context (128K+) | $0.25 Budget | vs → |
| 15 | OpenAI: GPT-5.2 | OpenAI | shares reasoning, tool-use, vision · similar context window | 400K Long context (128K+) | $1.75 Standard | vs → |