feat(vertex_ai): Add exclude_anthropic_beta_values config option #18129
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Add ability to filter specific values from the anthropic-beta header
for VertexAI Anthropic models. This addresses compatibility issues where
VertexAI rejects certain beta header values that Anthropic's API accepts.
Usage in YAML config:
```yaml
model_list:
- model_name: vertex-claude-sonnet
litellm_params:
model: vertex_ai/claude-sonnet-4@20250514
exclude_anthropic_beta_values:
- "context-1m-2025-08-07"
```
Changes:
- Add exclude_anthropic_beta_values field to GenericLiteLLMParams
- Filter beta values in VertexAIAnthropicConfig.transform_request()
- Filter beta headers in VertexAIPartnerModelsAnthropicMessagesConfig
- Add unit tests for both handlers
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Remove unused imports flagged by ruff: - json, verbose_logger from http_handler.py - Iterator, litellm, InteractionsAPIResponse from streaming_iterator.py - Optional, Query from endpoints.py 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Add ability to filter specific values from the anthropic-beta header for VertexAI Anthropic models. This addresses compatibility issues where VertexAI rejects certain beta header values that Anthropic's API accepts.
Usage in YAML config:
Changes:
🤖 Generated with Claude Code
Relevant issues
Pre-Submission checklist
Please complete all items before asking a LiteLLM maintainer to review your PR
tests/litellm/directory, Adding at least 1 test is a hard requirement - see detailsmake test-unitCI (LiteLLM team)
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Links:
Type
🆕 New Feature
🐛 Bug Fix
🧹 Refactoring
📖 Documentation
🚄 Infrastructure
✅ Test
Changes