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What Claude models does Claude Code use?

By default, the latest production-tier Anthropic model, currently Claude Opus 4.7 for heavy coding tasks and Claude Sonnet 4.6 for fast routine work (May 2026). You can pin specific models with --model or set defaults in your .claude/config.json. Extended thinking mode kicks in automatically for complex tasks (architectural decisions, debugging). You can also route Claude Code via AWS Bedrock or GCP Vertex AI if your org requires cloud-vendor billing, the CLI picks up ANTHROPIC_BEDROCK_BASE_URL / ANTHROPIC_VERTEX_PROJECT_ID env vars.

Kishan Savaliya
Kishan Savaliya
Adobe Certified Magento Commerce Developer
Ahmedabad [IN]working hours, replies within four hours
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