[Feat] add au version of claude-opus-4-6 to model cost map

[ssadedin]

Addition of AU version of Opus 4.6 Model

Why

General support for Opus 4.6 was added in #20506 however it omitted the AU (australian) specific instance profile used in Bedrock. This change only adds the the au id. It is copied from the US model settings which is consistent with past additions of this regional model profile.

Relevant issues

Supplements #20506

Pre-Submission checklist

Please complete all items before asking a LiteLLM maintainer to review your PR

I have not added a test since this is ONLY an update to the model catalog. I have tested that the model catalog parses correctly.

• I have Added testing in the tests/litellm/ directory, Adding at least 1 test is a hard requirement - see details
• My PR passes all unit tests on make test-unit
• My PR's scope is as isolated as possible, it only solves 1 specific problem

CI (LiteLLM team)

CI status guideline:

• 50-55 passing tests: main is stable with minor issues.
• 45-49 passing tests: acceptable but needs attention
• <= 40 passing tests: unstable; be careful with your merges and assess the risk.

• Branch creation CI run
  Link:

• CI run for the last commit
  Link:

• Merge / cherry-pick CI run
  Links:

Type

🆕 New Feature
🐛 Bug Fix
🧹 Refactoring
📖 Documentation
🚄 Infrastructure
✅ Test

Changes

[vercel]

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Project	Deployment	Actions	Updated (UTC)
litellm	Ready	Preview, Comment	Feb 6, 2026 9:02am

[CLAassistant]

All committers have signed the CLA.

[greptile-apps]

Greptile Overview

Greptile Summary

• Adds an AU-specific Bedrock Converse model id for Claude Opus 4.6 to the central model catalog.
• New entry mirrors the existing US regional profile (pricing, limits, and capability flags) for consistency.
• Enables users to select the AU Bedrock model identifier while keeping cost accounting/limits aligned with other regional entries.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk.
• Change is a single new entry in the model catalog JSON, matching an existing regional Opus 4.6 configuration; no code paths or schemas were modified and the JSON diff is well-formed.
• No files require special attention

Important Files Changed

Filename	Overview
model_prices_and_context_window.json	Adds an AU-region Bedrock Converse model entry for claude-opus-4-6-v1:0, mirroring the existing US regional pricing/capability fields; no functional code changes.

Sequence Diagram

sequenceDiagram
  participant User
  participant LiteLLM
  participant Catalog
  participant Bedrock

  User->>LiteLLM: Request AU Opus 4.6
  LiteLLM->>Catalog: Lookup model pricing
  Catalog-->>LiteLLM: Pricing + limits
  LiteLLM->>Bedrock: Converse call (AU id)
  Bedrock-->>LiteLLM: Response + usage
  LiteLLM-->>User: Response

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