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https://github.com/BerriAI/litellm.git
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extra_body passed to litellm.completion for an Anthropic model reached the Messages API as a literal nested "extra_body" key, and Anthropic rejected the request with "extra_body: Extra inputs are not permitted". That blocked every Anthropic request field litellm doesn't model yet, including fallbacks AnthropicConfig.transform_request now pops extra_body from the request params and merges its keys into the wire body. The direct Anthropic, Vertex AI and Azure paths all go through this transform. Paths on llm_http_handler, like Bedrock invoke, already pop extra_body before transform_request, so nothing is merged twice. EXTRA_BODY_ROUTING_KEYS is filtered out the same way as on the OpenAI-compatible path, so extra_body can't change the requested model fallbacks also needs the server-side-fallback-2026-07-01 beta, which the beta filter dropped as unknown, so Anthropic still answered "fallbacks: Extra inputs are not permitted". The beta is now forwarded for the anthropic provider only, since Anthropic documents server-side fallback for its own API. The Rust AnthropicBeta table mirrors the JSON config The regression test drives litellm.completion end to end against a mock transport and asserts the whole request body |
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| .. | ||
| _support | ||
| audio_tests | ||
| base_sdk_tests | ||
| benchmarks | ||
| code_coverage_tests | ||
| documentation_tests | ||
| e2e | ||
| e2e_harness | ||
| fixtures | ||
| harness_e2e | ||
| integration | ||
| rust-python-harness | ||
| test_litellm_rust | ||
| typing | ||
| unit | ||
| windows_tests | ||
| __init__.py | ||
| _fake_openai_endpoint_server.py | ||
| _flush_vcr_cache.py | ||
| _live_test_helpers.py | ||
| _master_key.py | ||
| _openai_record_replay_proxy.py | ||
| _process_helpers.py | ||
| _vcr_conftest_common.py | ||
| _vcr_redis_persister.py | ||
| _wait_helpers.py | ||
| _ws_vcr.py | ||
| AGENTS.md | ||
| capturing_transport.py | ||
| eval_swe_bench.py | ||
| fake_openai_endpoint.py | ||
| gettysburg.wav | ||
| large_text.py | ||
| openai_batch_completions.jsonl | ||
| pyrightconfig.json | ||
| README.MD | ||
| test_logging.conf | ||
| test_rust_python_harness.py | ||
| VCR_TESTING.md | ||
| white_100x100.png | ||
In total litellm runs 1000+ tests
[02/20/2025] Update:
To make it easier to contribute and map what behavior is tested,
we've started mapping the litellm directory in tests/unit
This folder can only run mock tests.