[Preview] v1.77.5-stable - MCP OAuth 2.0 Support
Deploy this version
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- Pip
Key Highlights
- MCP OAuth 2.0 Support - Enhanced authentication for Model Context Protocol integrations
- Scheduled Key Rotations - Automated key rotation capabilities for enhanced security
- New Gemini 2.5 Flash & Flash-lite Models - Latest September 2025 preview models with improved pricing and features
- Performance Improvements - Critical InMemoryCache unbounded growth resolution
New Models / Updated Models
New Model Support
| Provider | Model | Context Window | Input ($/1M tokens) | Output ($/1M tokens) | Features |
|---|---|---|---|---|---|
| Gemini | gemini-2.5-flash-preview-09-2025 | 1M | $0.30 | $2.50 | Chat, reasoning, vision, audio |
| Gemini | gemini-2.5-flash-lite-preview-09-2025 | 1M | $0.10 | $0.40 | Chat, reasoning, vision, audio |
| Gemini | gemini-flash-latest | 1M | $0.30 | $2.50 | Chat, reasoning, vision, audio |
| Gemini | gemini-flash-lite-latest | 1M | $0.10 | $0.40 | Chat, reasoning, vision, audio |
| DeepSeek | deepseek-chat | 131K | $0.60 | $1.70 | Chat, function calling, caching |
| DeepSeek | deepseek-reasoner | 131K | $0.60 | $1.70 | Chat, reasoning |
| Bedrock | deepseek.v3-v1:0 | 164K | $0.58 | $1.68 | Chat, reasoning, function calling |
| Azure | azure/gpt-5-codex | 272K | $1.25 | $10.00 | Responses API, reasoning, vision |
| OpenAI | gpt-5-codex | 272K | $1.25 | $10.00 | Responses API, reasoning, vision |
| SambaNova | sambanova/DeepSeek-V3.1 | 33K | $3.00 | $4.50 | Chat, reasoning, function calling |
| SambaNova | sambanova/gpt-oss-120b | 131K | $3.00 | $4.50 | Chat, reasoning, function calling |
| Bedrock | qwen.qwen3-coder-480b-a35b-v1:0 | 262K | $0.22 | $1.80 | Chat, reasoning, function calling |
| Bedrock | qwen.qwen3-235b-a22b-2507-v1:0 | 262K | $0.22 | $0.88 | Chat, reasoning, function calling |
| Bedrock | qwen.qwen3-coder-30b-a3b-v1:0 | 262K | $0.15 | $0.60 | Chat, reasoning, function calling |
| Bedrock | qwen.qwen3-32b-v1:0 | 131K | $0.15 | $0.60 | Chat, reasoning, function calling |
| Vertex AI | vertex_ai/qwen/qwen3-next-80b-a3b-instruct-maas | 262K | $0.15 | $1.20 | Chat, function calling |
| Vertex AI | vertex_ai/qwen/qwen3-next-80b-a3b-thinking-maas | 262K | $0.15 | $1.20 | Chat, function calling |
| Vertex AI | vertex_ai/deepseek-ai/deepseek-v3.1-maas | 164K | $1.35 | $5.40 | Chat, reasoning, function calling |
| OpenRouter | openrouter/x-ai/grok-4-fast:free | 2M | $0.00 | $0.00 | Chat, reasoning, function calling |
| XAI | xai/grok-4-fast-reasoning | 2M | $0.20 | $0.50 | Chat, reasoning, function calling |
| XAI | xai/grok-4-fast-non-reasoning | 2M | $0.20 | $0.50 | Chat, function calling |
Features
- Gemini
- XAI
- Add xai/grok-4-fast models - PR #14833
- Anthropic
- Bedrock
- Vertex AI
- SambaNova
- Add sambanova deepseek v3.1 and gpt-oss-120b - PR #14866
- OpenAI
- OpenRouter
- Add gpt-5 and gpt-5-codex to OpenRouter cost map - PR #14879
- VLLM
- Fix vllm passthrough - PR #14778
- Flux
- Support flux image edit - PR #14790
Bug Fixes
- Anthropic
- OpenAI
- Fix a bug where openai image edit silently ignores multiple images - PR #14893
- VLLM
- Fix: vLLM provider's rerank endpoint from /v1/rerank to /rerank - PR #14938
New Provider Support
- W&B Inference
- Add W&B Inference to LiteLLM - PR #14416
LLM API Endpoints
Features
- General
Bugs
- General
Management Endpoints / UI
Features
- Proxy CLI Auth
Virtual Keys
- Initial support for scheduled key rotations - PR #14877
- Allow scheduling key rotations when creating virtual keys - PR #14960
Models + Endpoints
- Fix: added Oracle to provider's list - PR #14835
Bugs
- SSO - Fix: SSO "Clear" button writes empty values instead of removing SSO config - PR #14826
- Admin Settings - Remove useful links from admin settings - PR #14918
- Management Routes - Add /user/list to management routes - PR #14868
Logging / Guardrail / Prompt Management Integrations
Features
- DataDog
- Logging -
datadogcallback Log message content w/o sending to datadog - PR #14909
- Logging -
- Langfuse
- Adding langfuse usage details for cached tokens - PR #10955
- Opik
- Improve opik integration code - PR #14888
- SQS
- Error logging support for SQS Logger - PR #14974
Guardrails
- LakeraAI v2 Guardrail - Ensure exception is raised correctly - PR #14867
- Presidio Guardrail - Support custom entity types in Presidio guardrail with Union[PiiEntityType, str] - PR #14899
- Noma Guardrail - Add noma guardrail provider to ui - PR #14415
Prompt Management
- BitBucket Integration - Add BitBucket Integration for Prompt Management - PR #14882
Spend Tracking, Budgets and Rate Limiting
- Service Tier Pricing - Add service_tier based pricing support for openai (BOTH Service & Priority Support) - PR #14796
- Cost Tracking - Show input, output, tool call cost breakdown in StandardLoggingPayload - PR #14921
- Parallel Request Limiter v3
- Priority Reservation - Fix: Priority Reservation: keys without priority metadata receive higher priority than keys with explicit priority configurations - PR #14832
MCP Gateway
- MCP Configuration - Enable custom fields in mcp_info configuration - PR #14794
- MCP Tools - Remove server_name prefix from list_tools - PR #14720
- OAuth Flow - Initial commit for v2 oauth flow - PR #14964
Performance / Loadbalancing / Reliability improvements
- Memory Leak Fix - Fix InMemoryCache unbounded growth when TTLs are set - PR #14869
- Cache Performance - Fix: cache root cause - PR #14827
- Concurrency Fix - Fix concurrency/scaling when many Python threads do streaming using sync completions - PR #14816
- Performance Optimization - Fix: reduce get_deployment cost to O(1) - PR #14967
- Performance Optimization - Fix: remove slow string operation - PR #14955
- DB Connection Management - Fix: DB connection state retries - PR #14925
Documentation Updates
- Provider Documentation - Fix docs for provider_specific_params.md - PR #14787
- Model References - Update model references from gemini-pro to gemini-2.5-pro - PR #14775
- Letta Guide - Add Letta Guide documentation - PR #14798
- README - Make the README document clearer - PR #14860
- Session Management - Update docs for session management availability - PR #14914
- Cost Documentation - Add documentation for additional cost-related keys in custom pricing - PR #14949
- Azure Passthrough - Add azure passthrough documentation - PR #14958
- General Documentation - Doc updates sept 2025 - PR #14769
- Clarified bridging between endpoints and mode in docs.
- Added Vertex AI Gemini API configuration as an alternative in relevant guides. Linked AWS authentication info in the Bedrock guardrails documentation.
- Added Cancel Response API usage with code snippets
- Clarified that SSO (Single Sign-On) is free for up to 5 users:
- Alphabetized sidebar, leaving quick start / intros at top of categories
- Documented max_connections under cache_params.
- Clarified IAM AssumeRole Policy requirements.
- Added transform utilities example to Getting Started (showing request transformation).
- Added references to models.litellm.ai as the full models list in various docs.
- Added a code snippet for async_post_call_success_hook.
- Removed broken links to callbacks management guide. - Reformatted and linked cookbooks + other relevant docs
- Documentation Corrections - Corrected docs updates sept 2025 - PR #14916
New Contributors
- @uzaxirr made their first contribution in PR #14761
- @xprilion made their first contribution in PR #14416
- @CH-GAGANRAJ made their first contribution in PR #14779
- @otaviofbrito made their first contribution in PR #14778
- @danielmklein made their first contribution in PR #14639
- @Jetemple made their first contribution in PR #14826
- @akshoop made their first contribution in PR #14818
- @hazyone made their first contribution in PR #14821
- @leventov made their first contribution in PR #14816
- @fabriciojoc made their first contribution in PR #10955
- @onlylonly made their first contribution in PR #14845
- @Copilot made their first contribution in PR #14869
- @arsh72 made their first contribution in PR #14899
- @berri-teddy made their first contribution in PR #14914
- @vpbill made their first contribution in PR #14415
- @kgritesh made their first contribution in PR #14893
- @oytunkutrup1 made their first contribution in PR #14858
- @nherment made their first contribution in PR #14933
- @deepanshululla made their first contribution in PR #14974
- @TeddyAmkie made their first contribution in PR #14758
- @SmartManoj made their first contribution in PR #14775
- @uc4w6c made their first contribution in PR #14720
- @luizrennocosta made their first contribution in PR #14783
- @AlexsanderHamir made their first contribution in PR #14827
- @dharamendrak made their first contribution in PR #14721
- @TomeHirata made their first contribution in PR #14164
- @mrFranklin made their first contribution in PR #14860
- @luisfucros made their first contribution in PR #14866
- @huangyafei made their first contribution in PR #14879
- @thiswillbeyourgithub made their first contribution in PR #14949
- @Maximgitman made their first contribution in PR #14965
- @subnet-dev made their first contribution in PR #14938
- @22mSqRi made their first contribution in PR #14972