Provider pricing
OpenAI AI API pricing
OpenAI is the pioneer of the modern LLM era, offering the broadest model lineup from the ultra-cheap GPT-5.4 Nano at $0.05/M input to the powerhouse GPT-5.4 Pro at $30/M input. Their API serves millions of developers and powers everything from chatbots to autonomous agents.
Founded2015
HeadquartersSan Francisco, CA
Tracked models23
Best for
Teams that need a one-stop shop with models for every budget and use case.
Strengths
- Widest model range — 5 tiers from $0.05 to $30/M input
- Industry-leading reasoning models (o4-mini, o3-mini)
- Best ecosystem: function calling, assistants API, batch processing
- 50% discount on cached prompts, 50% off batch API
Tracked OpenAI models
| Model | Input $/M | Output $/M | Context | Tier | Best for |
|---|---|---|---|---|---|
| GPT-5.6 | $6.00 | $36.00 | 400,000 | Flagship | Next-gen flagship — deeper reasoning, multimodal, long-context agents |
| GPT-5.5 Pro | $30.00 | $180.00 | 256,000 | Premium | Frontier reasoning, research, agentic workflows |
| GPT-5.5 | $5.00 | $30.00 | 256,000 | Flagship | Most intuitive flagship — complex multi-step tasks, agents |
| GPT-5.4 Pro | $30.00 | $180.00 | 256,000 | Premium | Highly complex tasks and cutting-edge research |
| GPT-5.4 | $2.50 | $15.00 | 128,000 | Flagship | General purpose, agents, coding |
| GPT-5.4 Mini | $0.400 | $1.60 | 128,000 | Mid-tier | Production apps, moderate complexity |
| GPT-5.4 Nano | $0.050 | $0.400 | 128,000 | Budget | Classification, routing, simple tasks |
| GPT-5.2 | $1.75 | $14.00 | 128,000 | Flagship | Coding, analysis |
| GPT-4.1 | $2.00 | $8.00 | 1,000,000 | Flagship | Coding, analysis, long-context tasks |
| GPT-4.1 Mini | $0.400 | $1.60 | 1,000,000 | Mid-tier | Structured tasks, cost-efficient coding |
| GPT-4.1 Nano | $0.100 | $0.400 | 1,000,000 | Budget | High-volume, low-latency workloads |
| o3 | $2.00 | $8.00 | 200,000 | Reasoning | Complex reasoning, research, math |
| o4-mini | $1.10 | $4.40 | 128,000 | Reasoning | Strong problem-solving and logical deduction |
| o3-mini | $1.10 | $4.40 | 128,000 | Reasoning | Strong problem-solving and logical deduction |
| GPT-5 | $1.25 | $10.00 | 400,000 | Flagship | Powerful all-rounder for accuracy, nuance, and multimodal text+image tasks |
| GPT-5 Mini | $0.250 | $2.00 | 400,000 | Mid-tier | Lower-cost GPT-5 for strong general performance |
| GPT-5 Nano | $0.050 | $0.400 | 400,000 | Budget | Fast, low-cost OpenAI model for simple or high-volume tasks |
| GPT-Image 2 | $10.00 | $40.00 | 0 | Premium | State-of-the-art image generation via /v1/images/generations |
| GPT-Image 1 Mini | $2.00 | $8.00 | 0 | Mid-tier | Cost-efficient image generation via /v1/images/generations |
| o5 | $3.00 | $12.00 | 256,000 | Reasoning | Next-gen o-series reasoning — math, science, agentic planning |
| o5-mini | $0.800 | $3.20 | 256,000 | Reasoning | Compact o5 reasoning for everyday problem solving |
| GPT-4.5 | $75.00 | $150.00 | 128,000 | Premium | Original GPT-4.5 research preview — broad knowledge and writing |
| GPT-4o Realtime | $5.00 | $20.00 | 128,000 | Flagship | Low-latency speech-to-speech Realtime API model |