Staxly

Google Gemini API vs Supabase

Gemini 2.5 Pro, Flash, Flash-Lite — multimodal + 2M context
vs. The open source Firebase alternative with Postgres

Google AI StudioSupabase website

Pricing tiers

Google Gemini API

Free Tier (AI Studio)
Generous free tier with rate limits. Good for dev + prototyping. Data may be used to improve Google products.
Free
Paid API (Gemini API)
Pay-as-you-go per-token. Data NOT used for training.
$0 base (usage-based)
Vertex AI (GCP)
Enterprise deployment via Google Cloud. Same pricing structure + GCP features (IAM, VPC-SC, CMEK).
$0 base (usage-based)
Gemini Enterprise
Custom. Gemini 2.5 Deep Think model access + Google Workspace + Agentspace.
Custom
Google AI Studio

Supabase

Free
Perfect for experiments. Projects pause after 7 days inactivity.
Free
Pro
Production-ready. Usage-based overages apply.
$25/mo
Team
For teams; includes SOC2 attestation and priority support.
$599/mo
Enterprise
Custom quotas, HIPAA compliance, dedicated support.
Custom
Supabase website

Free-tier quotas head-to-head

Comparing free-tier on Google Gemini API vs free on Supabase.

MetricGoogle Gemini APISupabase
bandwidth gb5 GB/month
db storage gb0.5 GB
edge invocations500000 invocations/month
file storage gb1 GB
mau50000 users/month
realtime messages2000000 messages/month

Features

Google Gemini API · 11 features

  • Batch API50% discount for async processing.
  • Code ExecutionPython code interpreter tool (sandboxed).
  • Context CachingCache system instructions + tools for up to 90% savings.
  • File APIUpload large files (up to 2 GB) for multimodal prompts.
  • Function CallingJSON schema-based tool calling. Parallel supported.
  • generateContent APICore generation endpoint.
  • Grounding with SearchAugment answers with Google Search results. Fact-checked citations returned.
  • Model TuningSupervised fine-tuning via AI Studio.
  • Multimodal Live APIBidirectional streaming voice + video (WebSocket).
  • Safety SettingsConfigurable thresholds for harm categories.
  • streamGenerateContentStreaming variant with SSE.

Supabase · 24 features

  • AuthenticationComplete JWT-based auth: passwords, magic links, OTP, OAuth, SSO, phone, MFA.
  • Backups & PITRAutomatic daily backups + Point-in-Time Recovery (WAL-G). 14-day default PITR wi
  • Compute InstancesUpgradeable DB compute: Micro, Small, Medium, Large. Affects CPU, RAM, and conne
  • Connection PoolingSupavisor pooler: Session mode (persistent) and Transaction mode (serverless). D
  • Cron JobsScheduled recurring jobs via pg_cron. Trigger DB functions, edge functions, or H
  • Custom DomainsConfigure custom hostname for API endpoints with SSL certificate management.
  • Database WebhooksAsync HTTP callbacks on INSERT/UPDATE/DELETE via pg_net extension.
  • Edge FunctionsTypeScript (Deno runtime) functions deployed globally at the edge. Supports secr
  • Full-Text SearchPostgreSQL native FTS: to_tsvector, to_tsquery, GIN indexes, fuzzy matching, wei
  • Image TransformationsOn-the-fly resize, crop, quality (20-100), WebP auto-format. Smart CDN caching.
  • Log DrainsRoute all stack logs to HTTP, Datadog, Loki, Sentry, S3, OTLP, or Axiom. Up to 2
  • Metrics API~200 Prometheus-compatible Postgres metrics. OpenTelemetry export to Datadog, Gr
  • Network RestrictionsCIDR allowlist for database access. Multiple IP ranges supported. Pro+ plan.
  • OAuth 2.1 ServerUse Supabase Auth as OAuth provider. Custom Access Token Hooks for claim injecti
  • pgvectorStore and search vector embeddings in Postgres. Supports HNSW/Flat indexes, cosi
  • PostgreSQL DatabaseFull PostgreSQL per project: SQL editor, table editor, CSV import, 50+ extension
  • PostgreSQL Extensions50+ pre-installed extensions: uuid-ossp, pgvector, pg_cron, plv8, pgtap, pg_net,
  • Preview BranchesEphemeral or persistent DB branches for isolated testing. Git integration, auto-
  • QueuesExactly-once message queues built on pgmq. Stored in Postgres with configurable
  • Read ReplicasAsync read-only replicas in multiple regions. Geo-routing, replication lag monit
  • RealtimeWebSocket subscriptions for DB changes (INSERT/UPDATE/DELETE), broadcast, and pr
  • Row Level SecuritySQL-native access control; policies auto-filter rows based on auth.uid() / auth.
  • SSL EnforcementRequire TLS for all DB connections. Configurable: required, preferred, disabled.
  • StorageFiles, Analytics (Iceberg), and Vector buckets with global CDN (285+ cities) and

Developer interfaces

KindGoogle Gemini APISupabase
CLISupabase CLI
SDK@google/genai, google-genai-go, google-genai (Python)C# SDK, Flutter SDK, JavaScript SDK, Kotlin SDK, Python SDK, Swift SDK
RESTGemini REST API, Vertex AI EndpointManagement API, REST API (PostgREST)
GRAPHQLGraphQL (pg_graphql)
MCPGemini MCPSupabase MCP Server
OTHERRealtime (WebSocket)
Staxly is an independent catalog of developer platforms. Outbound links to Google Gemini API and Supabase are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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