# Which AI API SDKs developers installed in October 2026

Published 2026-11-01 · covers October 2026

In October 2026, anthropic had the most-installed first-party AI API SDK at 321,389,037 downloads across PyPI and npm. Installs are not latency — they are the other question a developer asks: is anyone actually using this. Which AI provider SDKs were installed most? Provider Total PyPI npm anthropic 321,389,037 150,199,657 171,189,380 google 230,248,195 137,607,856 92,640,339 mistral 44,136,009 16,185,864 27,950,145 groq 20,186,982 16,795,477 3,391,505 cohere 12,188,984 10,340,762 1,848,222 xai 4,773,444 4,773,444 0 voyage 4,751,077 3,736,436 1,014,641 replicate 3,787,370 1,526,037 2,261,333 qwen 2,487,885 2,487,885 0 together 1,864,526 1,503,145 361,381 typesafe 1,809,743 1,809,743 0 cerebras 1,293,109 849,193 443,916 ai21 1,171,741 1,171,277 464 fireworks 1,157,798 1,157,786 12 writer 212,343 175,910 36,433 reka 203,186 203,186 0 glm 118,017 118,017 0 baseten 4,220 4,220 0 Who grew and who shrank? Provider Was Now Change typesafe 1,638,686 1,809,743 +10.4% baseten 4,106 4,220 +2.8% fireworks 1,128,230 1,157,798 +2.6% writer 208,656 212,343 +1.8% xai 4,710,655 4,773,444 +1.3% qwen 2,479,447 2,487,885 +0.3% reka 203,104 203,186 +0.0% anthropic 321,682,917 321,389,037 -0.1% glm 118,292 118,017 -0.2% cohere 12,220,499 12,188,984 -0.3% Why is the openai package not in this table? Because it is the client of a protocol , not of a vendor. Groq, Together, DeepInfra, OpenRouter and most others document their own APIs through it, so its download count measures how far the OpenAI-compatible interface has spread, not how much OpenAI is used. Counting it as one provider’s popularity would be the single easiest way to publish a wrong number here, so it is reported separately and never ranked.

Source: https://llmlatency.dev/blog/adoption-2026-10 · CC BY 4.0