* feat(gemini): add opt-in support for responseJsonSchema
Add support for Gemini's native responseJsonSchema parameter which uses
standard JSON Schema format instead of OpenAPI-style responseSchema.
Benefits of responseJsonSchema (Gemini 2.0+ only):
- Standard JSON Schema format (lowercase types)
- Supports additionalProperties for stricter validation
- Better compatibility with Pydantic's model_json_schema()
- No propertyOrdering required
Usage:
```python
response_format={
"type": "json_schema",
"json_schema": {"schema": {...}},
"use_json_schema": True # opt-in
}
```
This is backwards compatible - existing code continues to use
responseSchema by default.
Closes#16340
* docs: add documentation for use_json_schema parameter
Document the new use_json_schema option for Gemini 2.0+ models
in the JSON Mode documentation.
* refactor(gemini): use responseJsonSchema by default for Gemini 2.0+
Remove opt-in flag `use_json_schema` and automatically detect model version:
- Gemini 2.0+: uses responseJsonSchema (standard JSON Schema, supports additionalProperties)
- Gemini 1.5: uses responseSchema (OpenAPI format, legacy)
This follows LiteLLM's philosophy of abstracting provider differences -
users write the same code regardless of model version.
* test(vertex): update json_schema tests to accept both responseSchema formats
Gemini 2.x+ uses responseJsonSchema while Gemini 1.x uses responseSchema.
Update tests to accept both formats since litellm now auto-selects based
on model version.
* docs: update UI contributing guide with correct commands
- Replace outdated proxy_cli.py command with poetry run litellm
- Add config.yaml example with required settings
- Clarify that UI comes pre-built in the repo
- Add two development options: Build Mode and Dev Mode (hot reload)
- Note about redirect issues in Dev Mode
* docs: add hot reload login flow and PR submission section
- Document the 3000 -> 4000 -> 3000 login flow for hot reload
- Reorder: Hot Reload as Option A, Build Mode as Option B
- Add section 4 on submitting PRs
- Add note that UI changes don't require tests
* Update login flow navigation URL in contributing.md
- Added new section documenting WIF support for Vertex AI authentication
- Included SDK and Proxy configuration examples
- Added sample WIF credentials file format for AWS federation
- Mentioned LLM Credentials UI as an alternative for credential management
- Added link to Google Cloud WIF documentation
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
