[DOCS] Model configuration page references outdated Sonnet 4.5 instead of Sonnet 4.6

Resolved 💬 3 comments Opened Feb 17, 2026 by coygeek Closed Feb 21, 2026

Documentation Type

Incorrect/outdated documentation

Documentation Location

https://code.claude.com/docs/en/model-config

Section/Topic

"Model aliases" table, "Default model behavior" table, and related references throughout the page

Current Documentation

The model aliases table says:

| sonnet | Uses the latest Sonnet model (currently Sonnet 4.5) for daily coding tasks |

The default model behavior table says:

| Pay-as-you-go (API) users | Sonnet 4.5 |

Other references on the page:

"This example ensures all users run Sonnet 4.5 and can only choose between Sonnet and Haiku"
"Claude Code may automatically fall back to Sonnet if you hit a usage threshold with Opus."

The opusplan description says it switches to sonnet for execution, with the Sonnet alias still pointing to 4.5.

What's Wrong or Missing?

Claude Code v2.1.45 added support for Claude Sonnet 4.6. The model configuration page still references Sonnet 4.5 as the current Sonnet model in multiple places:

  • The sonnet alias description says "currently Sonnet 4.5" — should reference Sonnet 4.6
  • The default model table lists "Sonnet 4.5" for pay-as-you-go users
  • Example text references "Sonnet 4.5" specifically

Suggested Improvement

Update all references to Sonnet 4.5 on the model configuration page to reflect Sonnet 4.6:

Before:

| sonnet | Uses the latest Sonnet model (currently Sonnet 4.5) for daily coding tasks |

After:

| sonnet | Uses the latest Sonnet model (currently Sonnet 4.6) for daily coding tasks |

Similarly update:

  • Default model behavior table: "Sonnet 4.5" → "Sonnet 4.6"
  • Example text referencing Sonnet 4.5 specifically
  • The full model name example claude-sonnet-4-5-20250929 to the Sonnet 4.6 model ID

The platform models pages (https://platform.claude.com/docs/en/about-claude/models/overview and https://platform.claude.com/docs/en/about-claude/models) would also need updating to include Sonnet 4.6 in the model lineup.

Impact

Medium - Makes feature difficult to understand

Additional Context

Affected Pages:

| Page | Context |
|------|---------|
| https://code.claude.com/docs/en/model-config | Model aliases table, default model table, examples — all reference Sonnet 4.5 |
| https://platform.claude.com/docs/en/about-claude/models/overview | Model lineup — does not list Sonnet 4.6 |
| https://platform.claude.com/docs/en/about-claude/models | Legacy models page — still lists Sonnet 4.5 as current |
| https://platform.claude.com/docs/en/about-claude/models/choosing-a-model | Model recommendations — references Sonnet 4.5 |

Total scope: 4 pages affected

Source: Changelog v2.1.45 — "Added support for Claude Sonnet 4.6"

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