OpenAI API vs Hasura
Frontier models: GPT-5, o-series reasoning, image, audio, embeddings
vs. Instant GraphQL + REST on your data sources — with permissions
Pricing tiers
OpenAI API
Free Tier (Trial)
$5 free credit for new accounts. Rate-limited.
Free
Pay-as-you-go
No monthly min. Per-token pricing by model.
$0 base (usage-based)
Usage Tiers (1-5)
Automatic tier promotion based on cumulative spend. Higher tiers = higher rate limits + new model access.
$0 base (usage-based)
Enterprise
Custom. Priority access, SLA, dedicated capacity.
Custom
Hasura
OSS (Community)
Free forever (Apache-2.0). Self-host GraphQL Engine v2.
$0 base (usage-based)
Cloud Free
$0. 1 project. 60 req/min. Community support.
Free
Professional
$99/mo (starts). Usage-based compute + data pass-through. Production SLAs.
$99/mo
Advanced
Custom. Multi-region, dedicated, observability, SSO.
Custom
Enterprise
Custom. On-prem / air-gap / advanced security.
Custom
Free-tier quotas head-to-head
Comparing free-tier on OpenAI API vs free on Hasura.
| Metric | OpenAI API | Hasura |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
OpenAI API · 12 features
- Assistants API — Stateful assistants with tools, threads, file search.
- Batch API — 50% discount for async processing within 24h.
- Chat Completions API — Classic /v1/chat/completions endpoint.
- Files API — Upload docs for retrieval, fine-tuning, batch.
- Fine-Tuning — Supervised + DPO fine-tuning for GPT-4o, GPT-4.1, GPT-4o-mini.
- Function Calling — JSON-schema tool calling; parallel calls supported.
- Moderation — Safety classifier API (free).
- Prompt Caching — Auto-cache repeated prefixes; 50% cheaper cached hits.
- Realtime API — WebSocket streaming voice + text with low latency.
- Responses API — Stateful conversational API.
- Structured Outputs — Enforced JSON schema compliance.
- Vision — Image input for GPT models.
Hasura · 14 features
- Actions — Custom resolvers via HTTP.
- Data Connector Hub — Build connectors to any source.
- Event Triggers — DB changes → webhook.
- GraphQL API — Auto GraphQL over relational + NoSQL.
- Hasura DDN (v3) — Multi-source supergraph with OpenDD.
- JWT Auth — Pluggable JWT verification.
- Metadata Migrations — Git-versioned Hasura config.
- Permissions — Row + column + session-based.
- Query Caching — Edge caching with cache-control directive.
- Remote Schemas — Merge external GraphQL into supergraph.
- REST Endpoints — Turn any GraphQL op into REST.
- Scheduled Triggers — Cron + one-off webhook triggers.
- Subscriptions — Live queries via WS.
- Webhook Auth — Custom auth via webhook.
Developer interfaces
| Kind | OpenAI API | Hasura |
|---|---|---|
| CLI | — | ddn CLI (v3), hasura CLI |
| SDK | openai-dotnet, openai-go, openai-node, openai-python | — |
| REST | OpenAI REST API | Hasura REST Endpoints, Metadata API |
| GRAPHQL | — | Hasura GraphQL Engine |
| MCP | OpenAI MCP | — |
| OTHER | Realtime API (WebSocket) | Data Connectors, Hasura Console |
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