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 27 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

Innovation leaders

Release cadence and product freshness, calibrated within the tracked cohort.

4 companies with sufficient evidence

#1
Anthropic

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

Innovation

95

+17.14
#2
OpenAI

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

Innovation

89.29

+17.15
#3
Mistral AI

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

Innovation

60.71

-5.72
RankCompanyScoreChange
#1
Anthropic

4,002 GitHub stars

95+17.14
#2
OpenAI

31,941 GitHub stars

89.29+17.15
#3
Mistral AI

774 GitHub stars

60.71-5.72
#4
Cohere

406 GitHub stars

43.57-5.72

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