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39e0efa11d
* fix(anthropic-messages): send bare-string tool_choice to Responses API, propagate router-alias litellm_params
The Anthropic /v1/messages -> Responses API adapter always wrapped
tool_choice in an object ({"type": "auto"}, {"type": "required"}), but
the Responses API's tool_choice schema for these cases is a bare
string ("auto"/"required"/"none"). Sending the object shape to an
OpenAI-compatible backend (e.g. vLLM) fails Pydantic validation with a
400. The "none" case also fell through to "auto" instead of mapping to
"none".
Separately, litellm_params configured directly on a router-alias
deployment (auto_router/complexity_router, adaptive_router,
quality_router, or semantic auto_router) - e.g.
cache_control_injection_points, drop_params - were silently dropped
for every request through that alias. async_pre_routing_hook swaps
`model` from the alias name to the selected tier/route's model before
the deployment lookup runs, so the outbound call only ever merged in
the tier deployment's own litellm_params, never the alias's. Register
non-routing-config litellm_params from the alias deployment and apply
them to the request whenever a pre-routing hook substitutes the model.
* fix: satisfy ruff-strict-budget UP006 and router coverage checker
Use builtin dict[...] generics instead of typing.Dict for the two new
annotations introduced in the previous commit, since they pushed
UP006 over the codebase ceiling in ruff-strict-budget.json. Add a
direct unit test for _register_pre_routing_alias_overrides so the
text-based router_code_coverage.py checker sees it exercised by name.
* fix(router): replace alias-param denylist with a tight allowlist
_PRE_ROUTING_ALIAS_RESERVED_PARAMS excluded router-init-only keys from
the alias's litellm_params before forwarding the rest as request
kwargs, but GenericLiteLLMParams also holds deployment-management
fields (tpm, rpm, weight, tags, max_budget, budget_duration,
use_in_pass_through, litellm_credential_name, ...) on the same object.
Any of those left off the denylist would get silently forwarded as if
they were request kwargs.
Replace the denylist with a tight allowlist of exactly the two
request-shaping params this feature exists for - drop_params and
cache_control_injection_points - so unrelated management fields never
reach the outbound call regardless of what else GenericLiteLLMParams
grows to hold.
* fix(router): re-register adaptive-alias overrides on set_model_list reload
set_model_list() unconditionally clears pre_routing_alias_overrides on
every call (e.g. /config/reload), but _finalize_adaptive_router_if_configured()
skips rebuilding an AdaptiveRouter whose model_name already exists in
self.adaptive_routers - so _register_pre_routing_alias_overrides() never
ran again for an auto_router/adaptive_router alias after a reload,
silently dropping its drop_params/cache_control_injection_points.
Build the Deployment unconditionally and re-register its overrides even
on the skip-existing-router path; only the (expensive) AdaptiveRouter
construction itself stays skipped.
* style: ruff format after merging litellm_internal_staging
* fix(router): drop the alias-param allowlist, exclude only model
Per review discussion: instead of a router.py-local allowlist of exactly
which litellm_params an alias (auto_router/complexity_router,
adaptive_router, quality_router, semantic auto_router) can forward to
the request it routes, _register_pre_routing_alias_overrides now
forwards everything except `model` (the alias marker itself, e.g.
auto_router/complexity_router, never a real provider model).
Router-init-only fields (complexity_router_config,
complexity_router_default_model, auto_router_config,
auto_router_config_path, auto_router_default_model,
auto_router_embedding_model, adaptive_router_config,
adaptive_router_default_model, quality_router_config,
quality_router_default_model) now flow into request_kwargs unfiltered
too. That's safe because litellm.completion()/acompletion() already
strips anything in litellm.types.utils.all_litellm_params before
building the provider request - added these 10 keys there, alongside
the deployment-management fields (tpm, rpm, weight, ...) already listed.
Verified live: without that addition, complexity_router_config lands in
extra_body and ships raw to the provider; with it, it's stripped.
This moves the "which fields aren't real LLM params" list from a
router.py-local allowlist to the single existing global list every
completion() call already depends on, instead of maintaining two.
* refactor(router): look up alias litellm_params on demand instead of caching them
_register_pre_routing_alias_overrides cached each alias's litellm_params
into self.pre_routing_alias_overrides at deployment-init time, which
required keeping that cache in sync with set_model_list() reloads - the
exact bug the previous adaptive-router-reload fix was patching around
(AdaptiveRouter survives a reload, but the cache didn't always get
refreshed to match).
Delete the cache and the registration method entirely. async_pre_routing_hook
now looks up the alias's own litellm_params directly from self.model_list
via self.model_name_to_deployment_indices at request time, the same
model_list that's already correctly rebuilt on every set_model_list()
call. No second piece of state to invalidate, so the reload staleness
bug class isn't possible anymore, and it's less code than before.
|
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|---|---|---|
| .. | ||
| a2a_protocol | ||
| anthropic_interface/exceptions | ||
| batches | ||
| caching | ||
| completion_extras | ||
| containers | ||
| enterprise | ||
| expected_fine_tuning_api | ||
| expected_responses_api_request | ||
| experimental_mcp_client | ||
| google_genai | ||
| images | ||
| integrations | ||
| interactions | ||
| litellm_core_utils | ||
| llms | ||
| models | ||
| ocr | ||
| passthrough | ||
| proxy | ||
| realtime_api | ||
| repositories | ||
| rerank_api | ||
| responses | ||
| router_strategy | ||
| router_utils | ||
| sandbox | ||
| secret_managers | ||
| test_router | ||
| types | ||
| vector_stores | ||
| videos | ||
| __init__.py | ||
| conftest.py | ||
| log.txt | ||
| readme.md | ||
| test__types.py | ||
| test_a2a_registry_lookup.py | ||
| test_acompletion_session_reuse_e2e.py | ||
| test_add_deployment_no_master_key.py | ||
| test_aembedding_session_reuse_e2e.py | ||
| test_anthropic_beta_headers_filtering.py | ||
| test_anthropic_skills_transformation.py | ||
| test_anthropic_sonnet_1hr_cache_pricing.py | ||
| test_azure_ad_token_credential_resolution.py | ||
| test_azure_video_router.py | ||
| test_batch_completion_models_all_responses.py | ||
| test_bedrock_anthropic_1hr_cache_pricing.py | ||
| test_bedrock_usgov_haiku_1hr_cache.py | ||
| test_bedrock_usgov_pricing.py | ||
| test_budget_ratchet_check.py | ||
| test_chat_ui_responses_session.py | ||
| test_check_licenses.py | ||
| test_check_type_discipline.py | ||
| test_circleci_path_filter.py | ||
| test_claude_fable_5_config.py | ||
| test_claude_haiku_4_5_config.py | ||
| test_claude_opus_4_6_config.py | ||
| test_claude_opus_4_8_config.py | ||
| test_claude_sonnet_4_6_config.py | ||
| test_claude_sonnet_5_config.py | ||
| test_cloudflare_workers_ai_model_metadata.py | ||
| test_command_r7b_pricing.py | ||
| test_completion_timeout_resolution.py | ||
| test_compression.py | ||
| test_constants.py | ||
| test_container_router.py | ||
| test_cost_calculation_log_level.py | ||
| test_cost_calculator.py | ||
| test_count_tokens_public_api.py | ||
| test_dashscope_image_generation.py | ||
| test_deepseek_model_metadata.py | ||
| test_dockerfile_non_root.py | ||
| test_eager_tiktoken_load.py | ||
| test_exception_exports.py | ||
| test_exception_header_preservation.py | ||
| test_exception_mapping_request_attribute.py | ||
| test_filter_out_litellm_params.py | ||
| test_get_blog_posts.py | ||
| test_git_hooks.py | ||
| test_github_close_low_quality_prs.py | ||
| test_github_review_gate.py | ||
| test_github_triage_with_llm.py | ||
| test_github_triage_workflows.py | ||
| test_gpt_5_5_model_metadata.py | ||
| test_gpt_5_6_model_metadata.py | ||
| test_gpt_image_cost_calculator.py | ||
| test_groq_streaming_encoding.py | ||
| test_guardrail_exception_status_codes.py | ||
| test_lazy_imports.py | ||
| test_litellm_params_reserved_keys.py | ||
| test_logging.py | ||
| test_lowest_latency_zero_tokens.py | ||
| test_main.py | ||
| test_main_module_header.py | ||
| test_mistral_medium_3_5_model_metadata.py | ||
| test_model_block_unblock.py | ||
| test_model_cost_aliases.py | ||
| test_model_param_helper.py | ||
| test_model_response_normalization.py | ||
| test_muse_spark_1_1_model_metadata.py | ||
| test_nested_drop_params.py | ||
| test_openai_embedding_encoding_format_default.py | ||
| test_prisma_generate_if_needed.py | ||
| test_project_alias_tracking.py | ||
| test_project_tags_pydantic.py | ||
| test_rag_openai_ingestion.py | ||
| test_rate_limit_error_unification.py | ||
| test_redact_string_in_error_paths.py | ||
| test_redis.py | ||
| test_register_model_custom_pricing.py | ||
| test_register_model_zero_cost_persistence.py | ||
| test_responses_api_bridge_non_stream.py | ||
| test_responses_id_security.py | ||
| test_responses_streaming_container_ownership.py | ||
| test_retrieve_batch_bedrock_dispatch.py | ||
| test_router.py | ||
| test_router_block_helpers.py | ||
| test_router_exception_redaction.py | ||
| test_router_google_genai.py | ||
| test_router_model_cost_isolation.py | ||
| test_router_order_fallback.py | ||
| test_router_per_deployment_num_retries.py | ||
| test_router_redis_init.py | ||
| test_router_retry_non_retryable_errors.py | ||
| test_router_retry_policy_update.py | ||
| test_router_silent_experiment.py | ||
| test_router_streaming_fallback_metadata.py | ||
| test_router_weighted_failover.py | ||
| test_ruff_strict_gate.py | ||
| test_secret_redaction.py | ||
| test_service_logger.py | ||
| test_setup_wizard.py | ||
| test_shared_session_integration.py | ||
| test_ssl_verify_unit.py | ||
| test_stream_chunk_builder_annotations.py | ||
| test_streaming_connection_cleanup.py | ||
| test_system_message_format_bug.py | ||
| test_thinking_enabled.py | ||
| test_triage_rollout_heads_up.py | ||
| test_type_check_gate.py | ||
| test_type_discipline_gate.py | ||
| test_utils.py | ||
| test_utils_module_docstring.py | ||
| test_uuid_helper.py | ||
| test_vcr_safe_body_matcher.py | ||
| test_video_generation.py | ||
| test_xai_grok_4_3_model_metadata.py | ||
| test_xai_responses_auto_routing.py | ||
Testing for litellm/
This directory 1:1 maps the the litellm/ directory, and can only contain mocked tests.
The point of this is to:
- Increase test coverage of
litellm/ - Make it easy for contributors to add tests for the
litellm/package and easily run tests without needing LLM API keys.
File name conventions
litellm/proxy/test_caching_routes.pymaps tolitellm/proxy/caching_routes.pytest_<filename>.pymaps tolitellm/<filename>.py