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https://github.com/BerriAI/litellm.git
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55c499100e
Implement Feature A: when a request names a model using one spelling (e.g. dated 'claude-haiku-4-5-20251001') that the gateway serves under a different spelling (e.g. 'anthropic/claude-haiku-4-5'), route the request to the serving deployment instead of failing with a 403/400. Resolution only fires after all existing routes (exact name, alias, wildcard, default_deployment, team routes) have declined, so a request that succeeds today is never re-pointed (I1). Identity is enforced strictly: same provider (never cross-provider like Bedrock to Vertex), same model per cost-map attestation (never family/version hops like claude-sonnet-4-5 to claude-sonnet-5) (I2). Auth is AND-on-target: the caller must be allowed to call the resolved target group; the requested spelling's presence in an allowlist alone grants nothing, preventing privilege escalation via stale spellings (I3). Observability: requested name preserved in request metadata, resolution logged at INFO per (requested, target) pair, Prometheus counter for cardinality. Changes: - litellm/router_utils/canonical_model_resolution.py: new module with canonicalize, build index, lookup functions. - litellm/router.py: Router.resolve_canonical_model_name(), index caching + invalidation, config flag model_name_resolution. - litellm/types/router.py: RouterGeneralSettings.model_name_resolution field. - litellm/proxy/route_llm_request.py: resolve hook before 400, re-auth on target, metadata stamping. - litellm/proxy/auth/auth_checks.py: canonical lookup in _can_object_call_model with AND-on-target semantics. - tests/test_litellm/router_utils/test_canonical_model_resolution.py: 23 property tests covering I1–I4, cross-provider block, ambiguity fail-closed, auth semantics. Defaults to 'canonical' (on); users can set model_name_resolution: strict in router_settings to opt out entirely. Fixes the Claude Code case: dated Haiku requests now resolve across harness versions without client-side env vars. Follow-up: once operator data shows a single provider deployment of all Anthropic models, Feature B (cross-deployment resolution when only 1 provider exists) becomes safe to implement under similar guards. Co-Authored-By: Claude <noreply@anthropic.com> |
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| .. | ||
| agent_tests | ||
| audio_tests | ||
| base_sdk_tests | ||
| basic_proxy_startup_tests | ||
| batches_tests | ||
| benchmarks | ||
| code_coverage_tests | ||
| documentation_tests | ||
| e2e | ||
| enterprise | ||
| guardrails_tests | ||
| image_gen_tests | ||
| integration | ||
| litellm | ||
| litellm-proxy-extras | ||
| litellm_core_utils | ||
| litellm_utils_tests | ||
| llm_responses_api_testing | ||
| llm_translation | ||
| load_tests | ||
| local_testing | ||
| logging_callback_tests | ||
| mcp_tests | ||
| multi_instance_e2e_tests | ||
| ocr_tests | ||
| old_proxy_tests/tests | ||
| openai_endpoints_tests | ||
| otel_tests | ||
| pass_through_tests | ||
| pass_through_unit_tests | ||
| proxy_admin_ui_tests | ||
| proxy_behavior | ||
| proxy_e2e_anthropic_messages_tests | ||
| proxy_migration_tests | ||
| proxy_security_tests | ||
| proxy_unit_tests | ||
| router_unit_tests | ||
| scim_tests | ||
| search_tests | ||
| spend_tracking_tests | ||
| store_model_in_db_tests | ||
| test_litellm | ||
| unified_google_tests | ||
| vector_store_tests | ||
| windows_tests | ||
| __init__.py | ||
| _fake_openai_endpoint_server.py | ||
| _flush_vcr_cache.py | ||
| _live_test_helpers.py | ||
| _openai_record_replay_proxy.py | ||
| _vcr_conftest_common.py | ||
| _vcr_redis_persister.py | ||
| _ws_vcr.py | ||
| eval_swe_bench.py | ||
| fake_openai_endpoint.py | ||
| gettysburg.wav | ||
| large_text.py | ||
| openai_batch_completions.jsonl | ||
| pyrightconfig.json | ||
| README.MD | ||
| test_anthropic_compaction_usage.py | ||
| test_budget_management.py | ||
| test_callbacks_on_proxy.py | ||
| test_debug_warning.py | ||
| test_default_encoding_non_root.py | ||
| test_end_users.py | ||
| test_fallbacks.py | ||
| test_gpt5_azure_temperature_support.py | ||
| test_health.py | ||
| test_keys.py | ||
| test_litellm_proxy_responses_config.py | ||
| test_logging.conf | ||
| test_models.py | ||
| test_new_vector_store_endpoints.py | ||
| test_openai_endpoints.py | ||
| test_organizations.py | ||
| test_otel_thread_leak.py | ||
| test_presidio_latency.py | ||
| test_proxy_server_non_root.py | ||
| test_ratelimit.py | ||
| test_resource_cleanup.py | ||
| test_service_logger_otel.py | ||
| test_spend_logs.py | ||
| test_team.py | ||
| test_team_logging.py | ||
| test_team_members.py | ||
| test_users.py | ||
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/test_litellm
This folder can only run mock tests.