OpenAI Platform
GPT API, Assistants, fine-tuning, and the playground
The OpenAI developer platform provides API access to GPT-5.4, DALL-E, Whisper, and TTS models. Features include the Playground for testing, Assistants API for building agents, fine-tuning, and batch processing.
Panel Reviews
The Builder
Developer Perspective
“The most mature AI developer platform. Assistants API, function calling, and the Playground are all well-designed. Documentation is extensive.”
The Skeptic
Reality Check
“Reliability has improved dramatically. The rate limits are generous on paid tiers. The Assistants API is finally stable enough for production.”
The Futurist
Big Picture
“OpenAI has the largest ecosystem of developers and integrations. Even if other models catch up, the platform moat is real.”
Community Sentiment
“GPT-4o pricing makes it viable for production now — the economics finally work at scale”
“Assistants API v2 with file search is solid — still has rough edges but it's getting there”
“Rate limits and pricing changes with zero notice are the main pain — the models themselves are excellent”
“The Playground is still the best way to rapidly prototype prompts before committing to code”