v1.76.0-stable - RPS Improvements

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New Models / Updated Models

Bugs

• OpenAI
  • Gpt-5 chat: clarify does not support function calling PR #13612, s/o  @superpoussin22
• VertexAI
  • fix vertexai batch file format by @thiagosalvatore in PR #13576
• LiteLLM Proxy
  • Add support for calling image_edits + image_generations via SDK to Proxy - PR #13735
• OpenRouter
  • Fix max_output_tokens value for anthropic Claude 4 - PR #13526
• Gemini
  • Fix prompt caching cost calculation - PR #13742
• Azure
  • Support ../openai/v1/respones api base - PR #13526
  • Fix azure/gpt-5-chat max_input_tokens - PR #13660
• Groq
  • streaming ASCII encoding issue - PR #13675
• Baseten
  • Refactored integration to use new openai-compatible endpoints - PR #13783
• Bedrock
  • fix application inference profile for pass-through endpoints for bedrock - PR #13881
• DataRobot
  • Updated URL handling for DataRobot provider URL - PR #13880

Features

• Together AI
  • Added Qwen3, Deepseek R1 0528 Throughput, GLM 4.5 and GPT-OSS models cost tracking - PR #13637, s/o  @Tasmay-Tibrewal
• Fireworks AI
  • add fireworks_ai/accounts/fireworks/models/deepseek-v3-0324 - PR #13821
• VertexAI
  • Add VertexAI qwen API Service - PR #13828
  • Add new VertexAI image models vertex_ai/imagen-4.0-generate-001, vertex_ai/imagen-4.0-ultra-generate-001, vertex_ai/imagen-4.0-fast-generate-001  - PR #13874
• Anthropic
  • Add long context support w/ cost tracking - PR #13759
• DeepInfra
  • Add rerank endpoint support for deepinfra - PR #13820
  • Add new models for cost tracking - PR #13883, s/o  @Toy-97
• Bedrock
  • Add tool prompt caching on async calls - PR #13803, s/o  @UlookEE
  • role chaining and session name with webauthentication for aws bedrock - PR #13753, s/o @RichardoC
• Ollama
  • Handle Ollama null response when using tool calling with non-tool trained models - PR #13902
• OpenRouter
  • Add deepseek/deepseek-chat-v3.1 support - PR #13897
• Mistral
  • Add support for calling mistral files via chat completions - PR #13866, s/o  @jinskjoy
  • Handle empty assistant content - PR #13671
  • Support new ‘thinking’ response block - PR #13671
• Databricks
  • remove deprecated dbrx models (dbrx-instruct, llama 3.1) - PR #13843
• AI/ML API
  • Image gen api support - PR #13893

LLM API Endpoints

Bugs

• Responses API
  • add default api version for openai responses api calls - PR #13526
  • support allowed_openai_params - PR #13671

MCP Gateway

Bugs

• fix StreamableHTTPSessionManager .run() error - PR #13666

Vector Stores

Bugs

• Bedrock
  • Using LiteLLM Managed Credentials for Query - PR #13787

Management Endpoints / UI

Bugs

• Passthrough
  • Fix query passthrough deletion - PR #13622

Features

• Models
  • Add Search Functionality for Public Model Names in Model Dashboard - PR #13687
  • Auto-Add azure/ to deployment Name in UI - PR #13685
  • Models page row UI restructure - PR #13771
• Notifications
  • Add new notifications toast UI everywhere - PR #13813
• Keys
  • Fix key edit settings after regenerating a key - PR #13815
  • Require team_id when creating service account keys - PR #13873
  • Filter - show all options on filter option click - PR #13858
• Usage
  • Fix ‘Cannot read properties of undefined’ exception on user agent activity tab - PR #13892
• SSO
  • Free SSO usage for up to 5 users - PR #13843

Logging / Guardrail Integrations

Bugs

• Bedrock Guardrails
  • Add bedrock api key support - PR #13835

Features

• Datadog LLM Observability
  • Add support for Failure Logging PR #13726
  • Add time to first token, litellm overhead, guardrail overhead latency metrics - PR #13734
  • Add support for tracing guardrail input/output - PR #13767
• Langfuse OTEL
  • Allow using Key/Team Based Logging - PR #13791
• AIM
  • Migrate to new firewall API - PR #13748
• OTEL
  • Add OTEL tracing for actual LLM API call - PR #13836
• MLFlow
  • Include predicted output in MLflow tracing - PR #13795, s/o @TomeHirata 

Performance / Loadbalancing / Reliability improvements

Bugs

• Cooldowns
  • don't return raw Azure Exceptions to client (can contain prompt leakage) - PR #13529
• Auto-router
  • Ensures the relevant dependencies for auto router existing on LiteLLM Docker - PR #13788
• Model Alias
  • Fix calling key with access to model alias - PR #13830

Features

• S3 Caching
  • Use namespace as prefix for s3 cache - PR #13704
  • Async S3 Caching support (4x RPS improvement) - PR #13852, s/o @michal-otmianowski
• Model Group header forwarding
  • reuse same logic as global header forwarding - PR #13741
  • add support for hosted_vllm on UI - PR #13885
• Performance
  • Improve LiteLLM Python SDK RPS by +200 RPS (braintrust import + aiohttp transport fixes) - PR #13839
  • Use O(1) Set lookups for model routing - PR #13879
  • Reduce Significant CPU overhead from litellm_logging.py - PR #13895
  • Improvements for Async Success Handler (Logging Callbacks) - Approx +130 RPS - PR #13905

General Proxy Improvements

Bugs

• SDK
  • Fix litellm compatibility with newest release of openAI (>v1.100.0) - PR #13728
• Helm
  • Add possibility to configure resources for migrations-job - PR #13617
  • Ensure Helm chart auto generated master keys follow sk-xxxx format - PR #13871
  • Enhance database configuration: add support for optional endpointKey - PR #13763
• Rate Limits
  • fixing descriptor/response size mismatch on parallel_request_limiter_v3 - PR #13863, s/o  @luizrennocosta
• Non-root
  • fix permission access on prisma migrate in non-root image - PR #13848, s/o @Ithanil