Firebase (Firestore) vs Supabase: which do AI models pick?

Supabase leads on being recommended first (54% vs 1%). Supabase leads on being named in AI-built apps (12% vs 3%).

Firebase (Firestore)Supabase

Recommended first

54%

Mentioned

58%

84%

Named in AI-built apps

12%

	Firebase (Firestore)	Supabase
Rank among database vendors recommended first	#5 of 5	#1 of 5
Rank in AI-built apps	#3 of 3	#2 of 3
More detail	Firebase (Firestore) page	Supabase page

Based on 180 recommendation answers and 179 AI-built apps. Differences under about 7 points are within noise.

Building one of these?

Get the full breakdown by model and developer context, free by email.

Firebase (Firestore) breakdown Supabase breakdown

Measured 2026-10-01 with claude-sonnet-5.5, gpt-6.1-sol, gemini-3.8-flash, grok-4.7, deepseek-v4.1-flash, qwen3.8-max-prime, 5 runs per recommendation prompt and 5 per build prompt, via public APIs with no system prompt. Methodology. DefaultRank is independent and not affiliated with any tool vendor or model provider.