MongoDB vs PlanetScale: which do AI models pick?

MongoDB leads on being recommended first (17% vs 0%). MongoDB and PlanetScale are about even on being named in AI-built apps (0% vs 0%).

MongoDBPlanetScale

Recommended first

17%

Mentioned

76%

20%

Named in AI-built apps

	MongoDB	PlanetScale
Rank among database vendors recommended first	#3 of 5	not ranked
Rank in AI-built apps	not ranked	not ranked
More detail	MongoDB page	PlanetScale page

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

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MongoDB breakdown PlanetScale 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.