CLAUDE NEW April 18, 2026

Migrate to Claude Opus 4.7 API

WHAT CHANGED

Opus 4.7 uses the model string claude-opus-4-7 and supports 1M token context by default. Vision inputs now accept up to 3.75MP images for pixel-accurate UI reasoning.

WHY IT MATTERS

If your app uses Claude for coding or vision, switching to Opus 4.7 gives you 13% higher coding accuracy and 3x better vision with no other code changes needed.

HOW TO USE IT

Update the model string in your existing API calls. If you pass images, you can now send higher resolution without resizing.

CLAUDE / TYPESCRIPT

const response = await anthropic.messages.create({
  model: "claude-opus-4-7",
  max_tokens: 4096,
  messages: [{
    role: "user",
    content: [
      { type: "image", source: { type: "base64", media_type: "image/png", data: screenshotBase64 }},
      { type: "text", text: "Identify the UI components in this screenshot and output React code." }
    ]
  }]
});

opus-4-7apimigrationcode

ORIGINAL SOURCE

https://docs.anthropic.com/en/docs/about-claude/models

VIEW ORIGINAL SOURCE →

The migration is a one-line change. Existing tool use patterns, system prompts, and message formats work unchanged. The 1M context is always available — no beta flag needed. For vision-heavy workflows, test with larger resolutions before reducing pre-processing.

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