Anthropic's new flagship for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5.
12B model from Mistral and NVIDIA — efficient and multilingual.
No shared demos for these models yet.
No captured outputs for these models yet.
Both Claude Opus 5.5 and Mistral Nemo are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.
Mistral Nemo has a lower blended cost. Claude Opus 5.5: $4.00 input / $20.00 output. Mistral Nemo: $0.02 input / $0.03 output.
Claude Opus 5.5 has a larger context window: Claude Opus 5.5 supports 1M tokens vs Mistral Nemo at 131K tokens.
Claude Opus 5.5 supports vision/image input, but Mistral Nemo does not.
Key differences: Mistral Nemo is significantly cheaper; only Claude Opus 5.5 supports vision input; only Claude Opus 5.5 offers extended reasoning mode. Compare full specs on this page.
If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Claude Opus 5.5 and Mistral Nemo for free on idapt.app to see which performs better for your specific needs.