Open source

Libraries, tools and repos: releases you depend on and projects gaining stars.

Simon Willison's Weblog2 sources2d ago

llm-openai-decisions 0.1a0

OpenAI released their new Jev-style Decisions API, as previously announced at last week's DevDay.

2 outlets
Video
AI Engineer (YouTube)3h ago

Parameter Golf with AutoResearch — Vayum Arora, Zhengyao Jiang, Dixing Xu & Dhruv Srikanth, Weco AI

Zhengyao Jiang introduces autoresearch as repeated proposals and evaluations, and Dixing Xu explains the team's Aiden system and its contributions to OpenAI's Parameter Golf challenge.

r/LocalLLaMA (top, daily)18h ago

Converting dense models into Mixture-of-Experts

For the past few weeks I've been trying out converting existing dense models to sparse Mixture-of-Experts models, with no pretraining from scratch.

OpenAI News2d ago

Asana cuts model costs 76x in browser tests with GPT-6.1 Sol

Using GPT-6 Astra in Codex, Asana made its browser agent 76x cheaper and 5x faster in tests to offer customers more capable models.

GitHub: langchain-ai/langchain3d ago

langchain-ai/langchain langchain-openai==1.7.0

chore(deps): bump langgraph-sdk from 0.4.4 to 0.4.6 in /libs/partners/openai (#41096)

Code
GitHub: unslothai/unsloth3d ago

unslothai/unsloth v0.1.905-beta: Sandboxing is here!

We're introducing Windows, Mac and Linux sandboxing in Unsloth!

Code
GitHub: huggingface/transformers5d ago

huggingface/transformers v5.19.0: Release v5.19.0

EmbeddingGemma 2 is a multimodal embedding model from Google built on the Gemma 4 architecture.

Code
GitHub: langchain-ai/langgraph4d ago

langchain-ai/langgraph cli==0.4.33: langgraph-cli==0.4.33

feat(cli): add 'langgraph deploy listeners list' (#9221)

Code
GitHub: huggingface/trl5d ago

huggingface/trl v1.14.2

Patch release fixing two cases of silently wrong training and three crashes.

Code
Hugging Face trending models6d ago

Mia-AiLab/GLM-5.3-Flash-EXL3-4bpw-TensorFold-Ablit

Mia-AiLab published the model GLM-5.3-Flash-EXL3-4bpw-TensorFold-Ablit on Hugging Face.

Weights
GitHub: langchain-ai/langchain3d ago

langchain-ai/langchain langchain==1.4.4

chore(deps): bump langgraph-sdk from 0.4.2 to 0.4.4 in /libs/langchainv1 (#41074)

Code
GitHub: langchain-ai/langchain3d ago

langchain-ai/langchain langchain-core==1.6.9

feat(core): accept a callable in withretry (#41158)

Code
Simon Willison's Weblog3d ago

ttok 0.4

ttok is my CLI tool for counting tokens, using OpenAI's open source tiktoken library.

GitHub: langchain-ai/langchain4d ago

langchain-ai/langchain langchain-huggingface==1.2.3

chore(deps): bump langgraph-sdk from 0.4.4 to 0.4.6 in /libs/partners/huggingface (#41098)

Code
GitHub: unslothai/unsloth4d ago

unslothai/unsloth v0.1.904-beta: Train your own Decision model

Turn any text or vision LLM into a Jev-style decision model in Unsloth, with decision accuracy going from 30% to 80%.

Code
GitHub: langchain-ai/langchain4d ago

langchain-ai/langchain langchain-fireworks==1.7.1

chore(deps): bump langgraph-sdk from 0.4.4 to 0.4.6 in /libs/partners/fireworks (#41100)

Code
GitHub: langchain-ai/langgraph5d ago

langchain-ai/langgraph sdk==0.4.6: langgraph-sdk==0.4.6

fix(sdk-py): percent-encode threadid and assistantid in thread stream requests (#9213)

Code
GitHub: unslothai/unsloth5d ago

unslothai/unsloth v0.1.903-beta: New Browser + Voice Cloning

This release adds a browser inside Unsloth (browser use coming very soon), so files, web pages and pages the model writes open right beside your chat.

Code
GitHub: langchain-ai/langgraph6d ago

langchain-ai/langgraph 1.2.13: langgraph==1.2.13

fix(langgraph): fork before replaying an update checkpoint the thread moved past (#9170)

Code