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2c718ea191
Anthropic's Messages API returns 400
(``temperature is deprecated for this model``) when ``temperature``,
``top_p``, or ``top_k`` is set to any non-default value on Claude
Opus 4.7 — per the Opus 4.7 migration guide. Previously
``AnthropicConfig.get_supported_openai_params`` unconditionally
advertised ``temperature`` and ``top_p`` for every Anthropic model,
so ``litellm.drop_params=True`` was a no-op on 4.7: litellm had no
reason to drop a param it believed was supported, the value was
forwarded to the API, and end users took a hard 400. The same shape
hits ``AmazonConverseConfig`` for Bedrock-routed Opus 4.7.
Fix follows the maintainers' existing capability-flag pattern
(``supports_*`` keys on model_prices_and_context_window.json read via
``_is_explicitly_disabled_factory``) rather than hardcoding model
strings in transformation logic:
* Mark every Anthropic-API-shape Opus 4.7 entry with
``supports_temperature: false`` / ``supports_top_p: false`` —
canonical Anthropic, all four Bedrock Converse regions
(anthropic/global/us/eu/au), Azure AI, and Vertex AI. Sonnet 4.6,
Haiku 4.5, Opus 4.6, and 3.x models are unchanged. OpenRouter and
Perplexity entries are deliberately left alone — they route through
different configs.
* New ``AnthropicConfig._param_explicitly_unsupported`` helper reads
``supports_{param}`` via the shared
``_is_explicitly_disabled_factory`` (same chain that drives
``_is_reasoning_effort_level_explicitly_disabled`` in
``OpenAIGPT5Config``). When the registry lookup misses — e.g. an
unreleased dated 4.7 snapshot — falls back to the existing
``_is_claude_4_7_model`` family check so future 4.7 variants are
covered before anyone updates the JSON.
* ``AnthropicConfig.get_supported_openai_params`` filters the helper
across every param (not just temperature) so future deprecations
only need a JSON entry. ``map_openai_params`` honours the same
helper inside the ``temperature`` / ``top_p`` branches so direct
callers don't leak the params either, even without ``drop_params``.
* ``AmazonConverseConfig.get_supported_openai_params`` mirrors the
filter so Bedrock-routed Opus 4.7 gets the same treatment.
The Databricks workspace endpoint surfaces the same Anthropic
deprecation (see the issue's follow-up comment); leaving that to a
separate PR keeps this change focused on the two configs the bug
report names.
The backup ``litellm/model_prices_and_context_window_backup.json``
absorbs upstream drift from earlier unrelated merges so the
``ci_cd/check_files_match.py`` byte-identity check passes — same
constraint that hit #26246.
Tests:
* New parametrized unit tests assert ``temperature`` / ``top_p`` are
filtered out of ``AnthropicConfig.get_supported_openai_params`` for
``claude-opus-4-7``, the dated variant
``claude-opus-4-7-20260416``, and the vendor-prefixed
``anthropic/claude-opus-4-7``.
* Family-fallback test covers an unreleased dated snapshot not in the
registry.
* Regression tests pin Sonnet 4.6 (both dated and alias), Haiku 4.5,
Sonnet 3.5, Sonnet 3.7, and Opus 4.6 to still advertise both
sampling params.
* ``map_openai_params`` test confirms explicit ``temperature=0.3,
top_p=0.9`` does not reach ``optional_params`` for Opus 4.7 but
does for Opus 4.6.
* End-to-end-shape test reproduces the issue: ``drop_params=True`` +
``temperature=0.1`` + ``transform_request`` no longer leaks
``temperature`` into the Anthropic request body.
* Bedrock Converse mirror suite covers all four region variants and
pins Sonnet 4.6 / Haiku 4.5 / 3.5-sonnet on Bedrock as regressions.
Existing Anthropic + Bedrock test suites stay green
(``pytest tests/test_litellm/llms/anthropic
tests/test_litellm/llms/bedrock/chat`` — 976 passed locally).
Fixes #26444
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||
|---|---|---|
| .. | ||
| a2a_protocol | ||
| anthropic_interface/exceptions | ||
| 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 | ||
| ocr | ||
| passthrough | ||
| proxy | ||
| responses | ||
| router_strategy | ||
| router_utils | ||
| secret_managers | ||
| test_router | ||
| types | ||
| vector_stores | ||
| __init__.py | ||
| conftest.py | ||
| log.txt | ||
| readme.md | ||
| 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_azure_video_router.py | ||
| test_bedrock_anthropic_1hr_cache_pricing.py | ||
| test_chat_ui_responses_session.py | ||
| test_claude_haiku_4_5_config.py | ||
| test_claude_opus_4_6_config.py | ||
| test_claude_sonnet_4_6_config.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_gpt_image_cost_calculator.py | ||
| test_groq_streaming_encoding.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_model_cost_aliases.py | ||
| test_model_param_helper.py | ||
| test_model_response_normalization.py | ||
| test_nested_drop_params.py | ||
| test_openai_embedding_encoding_format_default.py | ||
| test_project_alias_tracking.py | ||
| test_project_tags_pydantic.py | ||
| test_redact_string_in_error_paths.py | ||
| test_redis.py | ||
| test_register_model_custom_pricing.py | ||
| test_responses_api_bridge_non_stream.py | ||
| test_responses_id_security.py | ||
| test_retrieve_batch_bedrock_dispatch.py | ||
| test_router.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_silent_experiment.py | ||
| test_router_weighted_failover.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_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