# Neon vs Supabase: which do AI models recommend for managed databases, October 2026

IT AI Recommendation Index, October 2026 Edition, Managed relational databases. Zero of fourteen models named Neon first on the direct prompt; zero named Supabase. Page: https://it-ai-index.com/it-data/managed-relational-databases/neon-vs-supabase/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Neon | 10% | #4 of 9 | 0% | 23 | 10 of 14 |
| Supabase | 7% | #6 of 9 | 6% | 18 | 9 of 14 |

## The direct prompt, model by model

- Gemini 3.5 Flash: neither first, one named (first choices: Amazon Aurora) (alternatives: Aiven, AlloyDB for PostgreSQL, Azure SQL Database, Neon)
- Qwen 3.7 Flash: neither first, one named (first choices: Amazon RDS) (alternatives: Azure Database for SQL Server / PostgreSQL, Neon, Vercel Postgres)
- Kimi K2: neither first, one named (first choices: Amazon RDS) (alternatives: Amazon Aurora, Azure SQL Database, Google Cloud SQL, Neon)
- Claude Haiku 4.5: neither named (first choices: Amazon RDS) (alternatives: Azure SQL Database)
- GPT-5.4 mini: neither named (first choices: Amazon Aurora, Amazon RDS) (alternatives: Azure Database for PostgreSQL, Azure SQL Database, Google Cloud SQL)
- Perplexity Sonar: neither named (first choices: Amazon RDS) (alternatives: Azure SQL Database, Google Cloud SQL)
- Grok 4.1 Fast: neither named (first choices: Google Cloud SQL) (alternatives: Aiven, Amazon RDS, Azure SQL Database, DigitalOcean Managed Databases)
- Mistral Small: neither named (first choices: Amazon Aurora) (alternatives: Azure SQL Database, Google Cloud SQL)
- DeepSeek V4 Flash: neither named (first choices: Amazon RDS) (alternatives: Azure SQL Database, Google Cloud SQL)
- Llama 4 Maverick: neither named (first choices: Amazon Aurora, Amazon RDS) (alternatives: Ntirety, Rackspace Technology)
- GLM 4.7 FlashX: neither named (first choices: Google Cloud SQL) (alternatives: Amazon RDS, Azure Database)
- MiniMax M2.5: neither named (first choices: Amazon RDS) (alternatives: Amazon Aurora, DigitalOcean Managed Databases, Google Cloud SQL)
- GPT-6 Luna: neither named (first choices: Amazon RDS) (alternatives: Amazon Aurora, Azure Database for PostgreSQL, Google Cloud SQL)
- Muse Glimmer 30B: neither named (first choices: Amazon RDS) (alternatives: Amazon Aurora, Azure SQL Database, Google Cloud SQL)

## What the models said about Neon

- "Supabase or Neon (both serverless PostgreSQL) stand out as the best managed relational database services" (Grok 4.1 Fast, budget prompt, first choice)
- "or Neon if you have very sporadic usage patterns and want to minimize costs" (Kimi K2, budget prompt, first choice)
- "For a budget-conscious company using PostgreSQL, I'd start with Neon" (GPT-6 Luna, budget prompt, first choice)

## What the models said about Supabase

- "you must be cautious about adopting it for long-term, enterprise-scale relational workloads" (Gemini 3.5 Flash, negative prompt, soft negative)
- "If you're just starting and want a free tier that doesn't expire, Supabase or Neon are excellent." (GLM 4.7 FlashX, budget prompt, first choice)
- "Supabase or Neon (both serverless PostgreSQL) stand out as the best managed relational database services" (Grok 4.1 Fast, budget prompt, first choice)
- "My overall pick: For most small companies with limited budgets, Supabase is the best value" (DeepSeek V4 Flash, budget prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.