Description
The OpenAI API provides developer access to the full suite of OpenAI models including GPT-4o, GPT-4o-mini, o3, o4-mini, GPT Image (DALL-E successor), Whisper speech-to-text, and Codex for code generation. Pricing is token-based pay-as-you-go: GPT-4o at $2.50/$10.00 per MTok (input/output), GPT-4o-mini at $0.15/$0.60, and o3 at $2/$8 per MTok. The Assistants API enables building AI agents with tools, code interpreter, and file search. The Batch API offers 50% discount for non-real-time workloads. Fine-tuning is available for GPT-4o and GPT-4o-mini. The Responses API is the latest format for structured outputs and tool use.
Features
- ●Multi-Model Suite: GPT-4o, o3, GPT Image, Whisper, Codex
- ●Assistants API: Build AI agents with tools and knowledge
- ●Batch API: 50% discount for async processing
- ●Fine-Tuning: Customize models with your own data
- ●Responses API: Structured outputs and tool use
Pricing
GPT-4o
$2.50/$10
/ per MTok (in/out)
- 128K context
- Multimodal
- Function calling
- Vision
GPT-4o-mini
$0.15/$0.60
/ per MTok
- 128K context
- Cost-effective
- Fast inference
- Fine-tunable
o3
$2/$8
/ per MTok
- Advanced reasoning
- Chain-of-thought
- 200K context
- Tool use
GPT Image
$0.04-$0.17
/ per image
- Text-to-image
- Image editing
- High quality
- Multiple sizes
Pros & Cons
Pros
✓ Industry-leading model quality
✓ Comprehensive model suite for any use case
✓ Batch API offers 50% cost savings
✓ Fine-tuning for custom models
Cons
✗ GPT-4o output at $10/MTok is expensive
✗ No free tier, pay-as-you-go only
✗ Rate limits on newer models
✗ Pricing changes frequently
Tags:API, GPT, developer platform, OpenAI, LLM