Anthropic: claude-opus-4-7:free
Claude Opus 4.7 is Anthropic's most advanced flagship model, specifically engineered for complex agentic reasoning, autonomous software engineering, and high-fidelity multimodal understanding. It introduces a groundbreaking "Self-Verification" mechanism, allowing the model to proactively audit its own logical plans and catch errors before execution. With its upgraded vision system supporting up to 3.75MP resolution, it can perceive technical diagrams and UI screenshots with 1:1 pixel precision. In 2026, Opus 4.7 is widely regarded as the industry gold standard for long-horizon projects that require sustained focus, literal instruction-following, and deep cognitive effort across massive 1M-token codebases.
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Performance
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Supported parameters
All providers = every upstream serving this model supports it. Some providers = depends on which upstream handles the request. Default = the value sent when you leave the parameter unset.
| Parameter | Providers | Default |
|---|---|---|
| frequency_penalty | Some providers | Not sent by default |
| include_reasoning | All providers | - |
| max_completion_tokens | Some providers | - |
| max_tokens | All providers | - |
| presence_penalty | Some providers | Not sent by default |
| reasoning | All providers | - |
| repetition_penalty | Some providers | Not sent by default |
| response_format | All providers | - |
| stop | Some providers | - |
| structured_outputs | Some providers | - |
| temperature | Some providers | Not sent by default |
| tool_choice | All providers | - |
| tools | All providers | - |
| top_k | Some providers | Not sent by default |
| top_p | Some providers | Not sent by default |
| verbosity | All providers | - |