Fixes#16486
## Problem
Callbacks configured via litellm.success_callback (e.g., PostHog, LangSmith)
were not being invoked for litellm.acompletion() in short-lived scripts.
The callbacks worked correctly for synchronous completions but async
completions would queue callbacks that were lost when the script exited
before GLOBAL_LOGGING_WORKER could process them.
Root cause: asyncio.run() closes the event loop immediately after the
async function completes, preventing the background worker from processing
queued callbacks.
## Solution
Implemented a two-level atexit handler approach:
1. GLOBAL_LOGGING_WORKER atexit handler (logging_worker.py):
- Processes remaining callbacks from queue before exit
- Creates new event loop to run pending coroutines synchronously
- Applies time and iteration limits to prevent blocking shutdown
2. Integration-specific atexit handlers (posthog.py as example):
- Flushes internal queue to external service
- Uses synchronous HTTP client for reliable delivery
- Each integration needs its own handler due to varying sync APIs
## Changes
- litellm/litellm_core_utils/logging_worker.py:
- Added _flush_on_exit() method
- Registered atexit handler in __init__
- Processes up to MAX_ITERATIONS_TO_CLEAR_QUEUE events
- Time-limited to MAX_TIME_TO_CLEAR_QUEUE seconds
- litellm/integrations/posthog.py:
- Added _flush_on_exit() method
- Registered atexit handler in __init__
- Groups events by credentials for batch sending
- Uses sync_client for reliable HTTP delivery
- tests/logging_callback_tests/test_posthog.py:
- Added test_async_callback_atexit_handler_exists()
- Added test_posthog_atexit_flushes_internal_queue()
- Added test_sync_callback_not_affected_by_atexit()
## Testing
- All existing tests pass
- Manual end-to-end testing confirms fix:
- Async events now arrive in PostHog
- Sync events continue working (no regression)
- Unit tests verify atexit handlers registered and functional
## Impact
- Fixes async callback delivery for ALL integrations using GLOBAL_LOGGING_WORKER
- No breaking changes - only adds missing functionality
- Sync path unchanged - no performance impact
* fix: minor fixes to mcp streaming with bedrock
* fix(bedrock/): working bedrock with mcp tools
handle empty description
* test: add unit test
* test: test fixes
* fix(vector_store_registry.py): load vector store with litellm params from config.yaml
fixes minor issue where litellm params weren't being loaded in from config.yaml
* docs(knowledgebase.md): document azure vector store current limitation
* fix(opentelemetry.py): add hidden params to otel logs
Fixes LIT-1274
* fix: fix test
* Implement fix for thinking_blocks and converse API calls
This fixes Claude's models via the Converse API, which should also fix
Claude Code.
* Add thinking literal
* Fix mypy issues
* Type fix for redacted thinking
* Add voyage model integration in sagemaker
* Add config file logic
* Use already exiting voyage transformation
* refactor code as per comments
* fix merge error
* refactor code as per comments
* refactor code as per comments
* UI new build
* [Fix] router - regression when adding/removing models (#15451)
* fix(router): update model_name_to_deployment_indices on deployment removal
When a deployment is deleted, the model_name_to_deployment_indices map
was not being updated, causing stale index references. This could lead
to incorrect routing behavior when deployments with the same model_name
were dynamically removed.
Changes:
- Update _update_deployment_indices_after_removal to maintain
model_name_to_deployment_indices mapping
- Remove deleted indices and decrement indices greater than removed index
- Clean up empty entries when no deployments remain for a model name
- Update test to verify proper index shifting and cleanup behavior
* fix(router): remove redundant index building during initialization
Remove duplicate index building operations that were causing unnecessary
work during router initialization:
1. Removed redundant `_build_model_id_to_deployment_index_map` call in
__init__ - `set_model_list` already builds all indices from scratch
2. Removed redundant `_build_model_name_index` call at end of
`set_model_list` - the index is already built incrementally via
`_create_deployment` -> `_add_model_to_list_and_index_map`
Both indices (model_id_to_deployment_index_map and
model_name_to_deployment_indices) are properly maintained as lookup
indexes through existing helper methods. This change eliminates O(N)
duplicate work during initialization without any behavioral changes.
The indices continue to be correctly synchronized with model_list on
all operations (add/remove/upsert).
* fix(prometheus): Fix Prometheus metric collection in a multi-workers environment (#14929)
Co-authored-by: sotazhang <sotazhang@tencent.com>
* Add tiered pricing and cost calculation for xai
* Use generic cost calculator
* Resolve conflicts in generated HTML files
* Remove penalty params as supported params for gemini preview model (#15503)
* fix conversion of thinking block
* add application level encryption in SQS (#15512)
* docs: fix doc
* docs(index.md): bump rc
* [Fix] GEMINI - CLI - add google_routes to llm_api_routes (#15500)
* fix: add google_routes to llm_api_routes
* test: test_virtual_key_llm_api_routes_allows_google_routes
* build: bump version
* bump: version 1.78.0 → 1.78.1
* add application level encryption in SQS
* add application level encryption in SQS
---------
Co-authored-by: Krrish Dholakia <krrishdholakia@gmail.com>
Co-authored-by: Ishaan Jaff <ishaanjaffer0324@gmail.com>
Co-authored-by: deepanshu <deepanshu.lulla@hq.bill.com>
* [Feat] Bedrock Knowledgebase - return search_response when using /chat/completions API with LiteLLM (#15509)
* docs: fix doc
* docs(index.md): bump rc
* [Fix] GEMINI - CLI - add google_routes to llm_api_routes (#15500)
* fix: add google_routes to llm_api_routes
* test: test_virtual_key_llm_api_routes_allows_google_routes
* add AnthropicCitation
* fix async_post_call_success_deployment_hook
* fix add vector_store_custom_logger to global callbacks
* test_e2e_bedrock_knowledgebase_retrieval_with_llm_api_call
* async_post_call_success_deployment_hook
* add async_post_call_streaming_deployment_hook
* async def test_e2e_bedrock_knowledgebase_retrieval_with_llm_api_call_streaming(setup_vector_store_registry):
* fix _call_post_streaming_deployment_hook
* fix async_post_call_streaming_deployment_hook
* test update
* docs: Accessing Search Results
* docs KB
* fix chatUI
* fix searchResults
* fix onSearchResults
* fix kb
---------
Co-authored-by: Krrish Dholakia <krrishdholakia@gmail.com>
* [Feat] Add dynamic rate limits on LiteLLM Gateway (#15518)
* docs: fix doc
* docs(index.md): bump rc
* [Fix] GEMINI - CLI - add google_routes to llm_api_routes (#15500)
* fix: add google_routes to llm_api_routes
* test: test_virtual_key_llm_api_routes_allows_google_routes
* build: bump version
* bump: version 1.78.0 → 1.78.1
* fix: KeyRequestBase
* fix rpm_limit_type
* fix dynamic rate limits
* fix use dynamic limits here
* fix _should_enforce_rate_limit
* fix _should_enforce_rate_limit
* fix counter
* test_dynamic_rate_limiting_v3
* use _create_rate_limit_descriptors
---------
Co-authored-by: Krrish Dholakia <krrishdholakia@gmail.com>
* Add google rerank endpoint
* Add docs
* fix mypy error
* fix mypy and lint errors
* Add haiku 4.5 integration
* Add haiku 4.5 integration for other regions as well
* Handle citation field correctly
* Fix filtering headers for signature calcs
* Add haiku 4.5 integration (#15650)
---------
Co-authored-by: Leslie Cheng <leslie.cheng5@gmail.com>
Co-authored-by: Sameer Kankute <sameer@berri.ai>
Co-authored-by: Alexsander Hamir <alexsanderhamirgomesbaptista@gmail.com>
Co-authored-by: Lucas <10226902+LoadingZhang@users.noreply.github.com>
Co-authored-by: sotazhang <sotazhang@tencent.com>
Co-authored-by: Deepanshu Lulla <deepanshu.lulla@gmail.com>
Co-authored-by: Krrish Dholakia <krrishdholakia@gmail.com>
Co-authored-by: deepanshu <deepanshu.lulla@hq.bill.com>
* fix: use fastuuid helper across the codebase
First batch of changes, simple drop in replacement.
* second batch of changes
* fixed: script mistake on helper file
- Change truncation strategy from head-only to middle-truncation (35% start, 65% end)
- Preserve both beginning and end of long strings for better debugging context
- Apply same sanitization to response payloads when store_prompts_in_spend_logs is enabled
- Increase default MAX_STRING_LENGTH_PROMPT_IN_DB from 1000 to 2048 characters
- Update tests to verify new truncation behavior with 35%-65% split
This provides better diagnostic value by keeping the more important end context
while still maintaining storage limits.
yuneng-jiang