Using spec-driven development with Claude Code | by Heeki Park | Mar, 2026 | Medium

What about if I swap from my Pro subscription to using Bedrock directly? I can swap by setting CLAUDE_CODE_USE_BEDROCK=1 before starting up Claude Code. Bedrock has Claude Opus 4.6, Sonnet 4.6, Sonnet 4.5, and Sonnet 4, all of which support 1m token context windows in beta.