AIIStack index

AI company leaderboards

Rankings built from attributable activity—not sponsorships, votes, or self-reported claims. Drill into every company’s evidence before making a decision.

No paid placement

Scores are cohort-normalized and use a versioned model. Visibility remains withheld until its evidence panel exists.

Tracking 15 companies across 7 governed markets.
MomentumInnovationPopularityAI visibility
Market
All tracked markets
Agent frameworks
AI inference platforms
AI & MLOps
Foundation models
Model development platforms
Vector databases
Voice AI

Foundation models

Popularity leaders

Open-source adoption signals such as GitHub stars and forks.

4 companies with sufficient evidence

#1
OpenAI

AI research and deployment company providing GPT models and developer APIs.

Popularity

77.86

+0
#2
Anthropic

AI safety and research company building Claude models and developer APIs.

Popularity

55

+0
#3
Mistral AI

AI company providing language models and developer APIs for production applications.

Popularity

37.86

+0
RankCompanyScoreChange
#1
OpenAI

31,590 GitHub stars

77.86+0
#2
Anthropic

3,894 GitHub stars

55+0
#3
Mistral AI

768 GitHub stars

37.86+0
#4
Cohere

399 GitHub stars

20.71+0

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