y-axis

PyPI

Monthly PyPI download counts for AI Python packages: model-vendor SDKs, agent frameworks, inference and serving, model tooling, and Model Context Protocol libraries, with all-PyPI downloads as a baseline and a derived vendor share. pypistats serves about 180 days, so this history begins in January 2026 and grows forward.

cadence · monthly 39 series updated 5 Sep 2026 pypistats.org ↗
release markers

All of PyPI (total downloads)

176B +294.1% 7 mo as of Aug 2026
020.0B40.0B60.0B80.0B100B120B140B160B180B2026
This line counts every package on PyPI, not only AI packages. It is a control: the AI lines are a small part of it.
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Model-vendor SDKs

openai

427M +563.9% 7 mo as of Aug 2026
0100M200M300M400M2026
Developers also use this package with other vendors, because those vendors copy OpenAI's API. The true OpenAI number is lower.
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anthropic

197M ×10 7 mo as of Aug 2026
050.0M100M150M200M2026
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google-generativeai

15.4M +135.4% 7 mo as of Aug 2026
02.0M4.0M6.0M8.0M10.0M12.0M14.0M16.0M18.0M2026
This is Google's old Gemini SDK. Developers moved to the new google-genai, so the fall here shows a move, not less use of Google.
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mistralai

38.4M +778.0% 7 mo as of Aug 2026
010.0M20.0M30.0M40.0M50.0M2026
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cohere

29.1M +491.9% 7 mo as of Aug 2026
010.0M20.0M30.0M40.0M2026
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google-genai

261M +487.3% 7 mo as of Aug 2026
050.0M100M150M200M250M300M2026
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xai-sdk

4.3M +804.2% 7 mo as of Aug 2026
02.0M4.0M6.0M8.0M2026
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perplexityai

1.2M +666.4% 7 mo as of Aug 2026
0200k400k600k800k1.0M1.2M2026
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dashscope

3.0M +788.8% 7 mo as of Aug 2026
0500k1.0M1.5M2.0M2.5M3.0M3.5M2026
Alibaba's DashScope SDK calls every model that Alibaba hosts, not only Qwen. The true Qwen number is lower.
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Agent frameworks & SDKs

openai-agents

35.8M +787.6% 7 mo as of Aug 2026
05.0M10.0M15.0M20.0M25.0M30.0M35.0M2026
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langchain

245M +143.2% 7 mo as of Aug 2026
050.0M100M150M200M250M300M2026
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langchain-core

170M +370.6% 7 mo as of Aug 2026
020.0M40.0M60.0M80.0M100M120M140M160M180M2026
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langgraph

65.8M +391.8% 7 mo as of Aug 2026
010.0M20.0M30.0M40.0M50.0M60.0M70.0M2026
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llama-index

6.8M +123.6% 7 mo as of Aug 2026
02.0M4.0M6.0M8.0M10.0M12.0M2026
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instructor

26.8M +582.7% 7 mo as of Aug 2026
05.0M10.0M15.0M20.0M25.0M2026
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claude-agent-sdk

31.6M ×26 7 mo as of Aug 2026
05.0M10.0M15.0M20.0M25.0M30.0M2026
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crewai

28.5M ×17 7 mo as of Aug 2026
05.0M10.0M15.0M20.0M25.0M30.0M2026
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pydantic-ai

11.8M +236.9% 7 mo as of Aug 2026
010.0M20.0M30.0M40.0M2026
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dspy

6.3M +304.2% 7 mo as of Aug 2026
01.0M2.0M3.0M4.0M5.0M6.0M7.0M2026
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smolagents

589k +389.3% 7 mo as of Aug 2026
0100k200k300k400k500k600k2026
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Inference & serving

litellm

644M ×28 7 mo as of Aug 2026
0100M200M300M400M500M600M700M2026
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ollama

20.6M +656.9% 7 mo as of Aug 2026
05.0M10.0M15.0M20.0M2026
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vllm

4.4M +257.3% 7 mo as of Aug 2026
02.0M4.0M6.0M8.0M10.0M2026
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groq

24.6M +719.4% 7 mo as of Aug 2026
05.0M10.0M15.0M20.0M25.0M2026
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together

2.1M +106.3% 7 mo as of Aug 2026
02.0M4.0M6.0M8.0M10.0M12.0M2026
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Model tooling

transformers

180M +305.0% 7 mo as of Aug 2026
020.0M40.0M60.0M80.0M100M120M140M160M180M2026
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huggingface-hub

472M +518.6% 7 mo as of Aug 2026
0100M200M300M400M2026
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sentence-transformers

32.1M +324.9% 7 mo as of Aug 2026
05.0M10.0M15.0M20.0M25.0M30.0M2026
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tiktoken

265M +663.0% 7 mo as of Aug 2026
050.0M100M150M200M250M2026
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chromadb

11.9M +145.6% 7 mo as of Aug 2026
02.0M4.0M6.0M8.0M10.0M12.0M14.0M2026
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Model Context Protocol

fastmcp needs mcp, so every fastmcp install also counts as an mcp install. Do not add the two charts together.

mcp

330M ×12 7 mo as of Aug 2026
050.0M100M150M200M250M300M2026
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fastmcp

87.5M ×11 7 mo as of Aug 2026
020.0M40.0M60.0M80.0M100M2026
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Model-vendor share (official Python SDKs)

A vendor's share is its downloads divided by the total of all six SDKs. ⚠ Developers also use `openai` with other vendors, so the true OpenAI share is lower.

OpenAI share derived

44.0% +4.2% 7 mo as of Aug 2026
0102030402026

Anthropic share derived

20.2% +56.3% 7 mo as of Aug 2026
051015202026

Google share derived

28.4% −26.0% 7 mo as of Aug 2026
010203040502026

xAI share derived

0.4% +18.9% 7 mo as of Aug 2026
00.20.40.60.812026

Mistral share derived

4.0% +36.7% 7 mo as of Aug 2026
0123452026

Cohere share derived

3.0% −6.6% 7 mo as of Aug 2026
01234562026

Figures

SeriesLatestChangeMinMaxCoverage
openai427M+563.9% 7 mo64.4M427MJan 2026 — Aug 2026
anthropic197M×10 7 mo19.5M197MJan 2026 — Aug 2026
openai-agents35.8M+787.6% 7 mo4.0M35.8MJan 2026 — Aug 2026
langchain245M+143.2% 7 mo101M328MJan 2026 — Aug 2026
langchain-core170M+370.6% 7 mo36.1M176MJan 2026 — Aug 2026
langgraph65.8M+391.8% 7 mo13.4M72.6MJan 2026 — Aug 2026
llama-index6.8M+123.6% 7 mo3.0M12.6MJan 2026 — Aug 2026
litellm644M×28 7 mo23.2M684MJan 2026 — Aug 2026
instructor26.8M+582.7% 7 mo3.9M26.8MJan 2026 — Aug 2026
transformers180M+305.0% 7 mo44.4M186MJan 2026 — Aug 2026
huggingface-hub472M+518.6% 7 mo76.2M472MJan 2026 — Aug 2026
sentence-transformers32.1M+324.9% 7 mo7.6M32.1MJan 2026 — Aug 2026
tiktoken265M+663.0% 7 mo34.7M265MJan 2026 — Aug 2026
chromadb11.9M+145.6% 7 mo4.8M14.8MJan 2026 — Aug 2026
ollama20.6M+656.9% 7 mo2.7M23.2MJan 2026 — Aug 2026
google-generativeai15.4M+135.4% 7 mo6.5M17.4MJan 2026 — Aug 2026
mistralai38.4M+778.0% 7 mo4.4M51.6MJan 2026 — Aug 2026
cohere29.1M+491.9% 7 mo4.9M46.4MJan 2026 — Aug 2026
All of PyPI (total downloads)176B+294.1% 7 mo44.7B184BJan 2026 — Aug 2026
google-genai261M+487.3% 7 mo44.4M298MJan 2026 — Aug 2026
xai-sdk4.3M+804.2% 7 mo474k9.1MJan 2026 — Aug 2026
perplexityai1.2M+666.4% 7 mo155k1.2MJan 2026 — Aug 2026
dashscope3.0M+788.8% 7 mo338k3.5MJan 2026 — Aug 2026
claude-agent-sdk31.6M×26 7 mo1.2M31.6MJan 2026 — Aug 2026
crewai28.5M×17 7 mo1.7M28.5MJan 2026 — Aug 2026
pydantic-ai11.8M+236.9% 7 mo3.5M42.8MJan 2026 — Aug 2026
dspy6.3M+304.2% 7 mo1.6M7.3MJan 2026 — Aug 2026
smolagents589k+389.3% 7 mo120k660kJan 2026 — Aug 2026
mcp330M×12 7 mo28.5M330MJan 2026 — Aug 2026
fastmcp87.5M×11 7 mo8.3M96.2MJan 2026 — Aug 2026
vllm4.4M+257.3% 7 mo1.2M10.1MJan 2026 — Aug 2026
groq24.6M+719.4% 7 mo3.0M28.0MJan 2026 — Aug 2026
together2.1M+106.3% 7 mo1.0M12.3MJan 2026 — Aug 2026
OpenAI share44.0%+4.2% 7 mo33.5%44.0%Jan 2026 — Aug 2026
Anthropic share20.2%+56.3% 7 mo10.4%20.2%Jan 2026 — Aug 2026
Google share28.4%−26.0% 7 mo28.4%50.5%Jan 2026 — Aug 2026
xAI share0.4%+18.9% 7 mo0.4%1.1%Jan 2026 — Aug 2026
Mistral share4.0%+36.7% 7 mo2.3%5.6%Jan 2026 — Aug 2026
Cohere share3.0%−6.6% 7 mo2.8%5.7%Jan 2026 — Aug 2026
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