Claude Opus 4.7 Model Support / Claude Code v2.1.111

What

Full support for the new Claude Opus 4.7 model across all provider platforms, with automatic remapping from Opus 4.6.

Usage

# Opus 4.7 is now the default for first-party users
claude

# Explicitly select Opus 4.7
claude --model claude-opus-4-7

# Opus 4.7 with 1M context window
claude --model opus[1m]

# Opt out of automatic model remapping
CLAUDE_CODE_DISABLE_LEGACY_MODEL_REMAP=1 claude

Details

Opus 4.7 is automatically selected as the default model for first-party users, replacing Opus 4.6
Users on Opus 4.6 will see "Model updated to Opus 4.7" with an option to opt out via CLAUDE_CODE_DISABLE_LEGACY_MODEL_REMAP=1
The 1M context window variant is available as "Opus 4.7 (1M context)" in the model picker
Vertex AI region support added via VERTEX_REGION_CLAUDE_4_7_OPUS environment variable
First-time users see an onboarding banner: "Opus 4.7 is here" / "Welcome to Opus 4.7 xhigh!"
Model descriptions updated throughout: "Opus 4.7 · Most capable for complex work"
Adaptive thinking support extended to Opus 4.7
The model family reference in system prompts now reads "Claude 4.X" instead of "Claude 4.6 and 4.5"

Evidence

Opus 4.7 model strings (search for "claude-opus-4-7") — 0 occurrences in v2.1.110, 144 in v2.1.111. Onboarding via qUY() at line ~546062 (search for "Opus 4.7 is here")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.