Python livekit-agents@1.4.5 Released

Agents
1

What’s Changed

  • Pass through additional params to LemonSlice when using the LemonSlice Avatar by @jp-lemon in #4984

  • fix(anthropic): add dummy user message for Claude 4.6+ trailing assistant turns by @giulio-leone in #4973

  • (keyframe): remove whitespace from py.typed by @tinalenguyen in #4990

  • Add Phonic Plugin to LiveKit agents by @qionghuang6 in #4980

  • Fixed E2EE encryption of content in data tracks by @zelidrag-arbo in #4992

  • fix: resync tool context when tools are mutated inside llm_node by @longcw in #4994

  • [:robot: readme-manager] Update README by @ladvoc in #4996

  • fix(google): prevent function_call text from leaking to TTS output by @BkSouX in #4999

  • (openai responses): add websocket connection pool by @tinalenguyen in #4985

  • (openai tts): close openai client by @tinalenguyen in #5012

  • nvidia stt: add speaker diarization support by @longcw in #4997

  • update error message when TTS is not set by @longcw in #4998

  • initialize interval future in init by @tinalenguyen in #5013

  • Fix/elevenlabs update default voice non expiring by @yusuf-eren in #5010

  • [Inworld] Flush to drain decoder on every audio chunk from server by @ianbbqzy in #4983

  • (google): support passing credentials through realtime and llm by @tinalenguyen in #5015

  • use default voice accessible to free tier users by @tmshapland in #5020

  • make commit_user_turn() return a Future with the audio transcript by @longcw in #5019

  • Add GPT-5.4 to OpenAI plugin by @Topherhindman in #5022

  • Generate and upload markdown docs by @Topherhindman in #4993

  • Add GPT-5.4 and GPT-5.3 Chat Latest support by @Topherhindman in #5030

  • Improve Audio Generation Quality for Cartesia TTS Plugin by @tycartesia in #5032

  • fix(elevenlabs): handle empty words in _to_timed_words by @MonkeyLeeT in #5036

  • fix(deepgram): include word confidence for stt v2 alternatives by @inickt in #5034

  • fix: generate final LLM response when max_tool_steps is reached by @IanSteno in #4747

  • fix: guard against negative sleep duration in voice agent scheduling by @jnMetaCode in #5040

  • add modality-aware Instructions with audio/text variants by @longcw in #4987

  • fix(core): move callbacks to the caller by @chenghao-mou in #5039

  • Added raw logging of API errors via the LiveKit plugins for both STT and TTS. by @dhruvladia-sarvam in #5025

  • Log LemonSlice API error + new agent_idle_prompt arg by @jp-lemon in #5052

  • Sarvam v3 tts addns by @dhruvladia-sarvam in #4976

  • fix(google): avoid session restart on update_instructions, use mid-session client content by @D-zigi in #5049

  • (responses llm): override provider property and set use_websocket to False for wrappers by @tinalenguyen in #5055

  • feat(mcp): add MCPToolResultResolver callback for customizing tool call results by @longcw in #5046

  • docs: add development instructions to README and example READMEs by @bcherry in #2636

  • Improve plugin READMEs with installation, pre-requisites, and docs links by @bcherry in #3025

  • Add generate_reply and update_chat_ctx support to Phonic Plugin by @qionghuang6 in #5058

  • feat: enhance worker load management with reserved slots and effective load calculation by @ProblematicToucan in #4911

  • fix(core): render error message with full details in traceback by @chenghao-mou in #5047

  • feat(core): allow skip_reply when calling commit_user_turn by @chenghao-mou in #5066

  • fix(mcp): replace deprecated streamablehttp_client with streamable_http_client by @longcw in #5048

  • fix: disable aec warmup timer when audio is disabled by @longcw in #5065

  • feat(openai): add transcript_confidence from OpenAI realtime logprobs by @theomonnom in #5070

  • Enhance LK Inference STT and TTS options with new parameters and models by @russellmartin-livekit in #4949

  • Move Instructions to beta exports by @theomonnom in #5075

  • livekit-agents 1.4.5 by @theomonnom in #5076

New Contributors

Full Changelog: https://github.com/livekit/agents/compare/livekit-agents@1.4.4…livekit-agents@1.4.5

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