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Ranked by Attention Score: stars gained over the last 180 complete days

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Tags: Structured output

1.pydantic / pydantic-ai

How Python does AI. Agents, realtime voice, image generation, embeddings. Every model, every interface, typed end to end.

agent-framework
pydantic
python
genai
llm
harness
+1 more

Python MIT21K total3.1K forks

+4,267 stars

from 16,760 · score 8.36

2.567-labs / instructor

structured outputs for llms

openai
python
pydantic-v2
openai-functions
validation
openai-function-calli

Python MIT14K total1.4K forks

+1,245 stars

from 12,850 · score 7.13

3.guidance-ai / guidance

A guidance language for controlling large language models.

Jupyter Notebook MIT22K total1.2K forks

+473 stars

from 21,346 · score 6.16

4.zendev-sh / goai

Go AI SDK, the Go way. One unified API across 21+ providers. Streaming, structured output, MCP support, stdlib only. Go AI SDK for AI applications inspired by Vercel AI SDK.

ai
ai-agents
ai-tools
llm
sdk-go
ai-sdk
+13 more

Go MIT234 total39 forks

+152 stars

from 82 · score 5.03

5.cognesy / instructor-php

Unified LLM API, structured data outputs with LLMs, and agent SDK - in PHP

genai
llm
php
agents
ai
ai-agents

PHP MIT328 total27 forks

+12 stars

from 316 · score 2.56

6.fugue-labs / gollem

The production agent framework for Go — type-safe agents, structured output, multi-provider streaming, guardrails, and multi-agent orchestration with zero core dependencies.

Go MIT37 total1 forks

+10 stars

from 27 · score 2.40

Order: Attention Score

Most net stars gained in the window first. The score only puts this gain on a log scale, so the order is the order of the gain.

How the ranking works

Ranked by stars gained in the window. The score is the natural log of one plus that gain, so a repository's rank is exactly its star gain's rank.

score = log1p(net stars gained in the trailing T complete UTC days)

A repository is ranked only when its Star History covers every day of the window and its latest Observation is not missing.

The longest window is 180 days. Star History from the Repository Host goes back at most 180 days before the first daily record that AwesomeRepos made for the repository. A longer window needs more of these daily records first. A repository younger than the window does not rank in it.

The filters select from the same eligible repositories. A repository matches the topics when it has any of them. Total stars is the count now. Last push and creation on the Repository Host count back from the start of today (UTC). The counts beside the languages, licenses, and topics include all ranked repositories in the window. A Tag holds the repositories that have it. See Tags.

A new repository enters the index when it gains stars faster than the published admission threshold, whatever its size. A repository stays in the index after it enters. Thus an archived repository can still rank.

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