83
Stack Score
Best for
Developers shipping AI features who want the broadest model lineup, best SDKs, and the most stable ecosystem.
At a glance
- Pricing
- paid
- Setup time
- 15 minutes
- Learning curve
- medium
- Last verified
- 5/19/2026
What we love
- ✓Broadest model lineup — text, vision, voice, images
- ✓Mature SDKs and the largest ecosystem of tutorials
- ✓Reliable uptime and predictable rate-limit increases
- ✓Batch API is genuinely cheap for offline workloads
Where it falls short
- −Pricing tiers and rate limits shift every few months
- −Reasoning models are slower and more expensive than competitors
- −Enterprise data-residency options are still maturing
Pricing
✓ Pricing verified May 19, 20263 tiers
Free tier
$0
trial credits
- ✓Limited credits on signup
- ✓All models available
- ✓Rate-limited
Pay-as-you-go
Token-based
per usage
- ✓GPT-5 mini ~$0.25/M input
- ✓GPT-5 ~$1.25/M input
- ✓Batch API 50% off
Enterprise
Custom
contract
- ✓SOC 2 Type 2
- ✓Zero data retention
- ✓Dedicated capacity
Why we picked it
The default API surface for production AI features. Reliable, fast, and the most-supported by frameworks.
Overview
OpenAI's developer platform. Direct API access to GPT-5, o-series reasoning models, Realtime API, Sora API, Assistants, and DALL-E.
Key features
- ●GPT-5, GPT-5 mini, and o-series reasoning models
- ●Responses API with stateful conversations and tools
- ●Function calling with structured JSON outputs
- ●Vision input — images, charts, screenshots, PDFs
- ●DALL-E 3 image generation and gpt-image-1
- ●Whisper transcription and TTS voice synthesis
- ●Realtime API for low-latency voice agents
- ●Batch API at 50% discount for non-urgent jobs
Best use cases
Production AI features
Ship chat, search, or generation features in your product using the most-supported AI API.
Voice agents
Build low-latency phone agents or in-app voice with the Realtime API and Whisper.
Batch enrichment
Process millions of rows offline at half price for classification, tagging, or summarization.
Integrations
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