Claude Opus 4.5 → Claude Opus 4.7
In-place upgrade within the Claude Opus line.
A safe upgrade for any team using Opus 4.5 for hardest reasoning. 4.7 is the registry default on Switchy as of 2026-04 and improves on long-running agentic work. Cost and context window are unchanged.
Prompt translation tips
- · Start with your existing system prompt unchanged and run a 20-prompt evaluation set side-by-side; only change what fails.
- · Watch for instruction-following drift — different labs follow instructions at different temperatures (Anthropic models are stricter).
- · Tool-call shapes vary — review parallel tool calls, JSON-only output requirements, and any structured-output hints you depend on.
- · If you use vision, retest your prompt set with the same images — different models excel at different layouts.
Pricing math
Moving from Anthropic: Claude Opus 4.5 to Anthropic: Claude Opus 4.7:
- Input tokens: same price.
- Output tokens: same price.
Capability gaps to plan for
- · Modalities removed: file. Affected workflows need an alternative path.
- · Run your full eval suite against the new model in a Switchy Space before flipping production.
Side-by-side
See the full comparison: Anthropic: Claude Opus 4.5 vs Anthropic: Claude Opus 4.7.