Complete pricing breakdown for all 64 OpenAI API models. Compare input and output costs per million tokens for GPT-4o, o3, o1, GPT-4o Mini, and every other model. Includes a cost calculator and side-by-side comparison with Anthropic and Google.
| Model | Input $/1M | Output $/1M |
|---|---|---|
| gpt-oss-120b (free) | Free | Free |
| gpt-oss-20b (free) | Free | Free |
| Sora | Free | Free |
| Model | Input $/1M | Output $/1M |
|---|---|---|
| gpt-oss-20b | $0.030 | $0.110 |
| gpt-oss-120b | $0.039 | $0.190 |
| gpt-oss-safeguard-20b | $0.075 | $0.300 |
| GPT-5 Nano | $0.050 | $0.400 |
| GPT-4.1 Nano | $0.100 | $0.400 |
| GPT-4o-mini Search Preview | $0.150 | $0.600 |
| GPT-4o-mini (2024-07-18) | $0.150 | $0.600 |
| GPT-4o-mini | $0.150 | $0.600 |
| Model | Input $/1M | Output $/1M |
|---|---|---|
| GPT-5.4 Nano | $0.200 | $1.25 |
| GPT-3.5 Turbo | $0.500 | $1.50 |
| GPT-4.1 Mini | $0.400 | $1.60 |
| GPT-5.1-Codex-Mini | $0.250 | $2.00 |
| GPT-5 Image Mini | $2.50 | $2.00 |
| GPT-5 Mini | $0.250 | $2.00 |
| GPT-3.5 Turbo (older v0613) | $1.00 | $2.00 |
| GPT-3.5 Turbo Instruct | $1.50 | $2.00 |
| GPT Audio Mini | $0.600 | $2.40 |
| GPT-3.5 Turbo 16k | $3.00 | $4.00 |
| o4 Mini High | $1.10 | $4.40 |
| o4 Mini | $1.10 | $4.40 |
| o3 Mini High | $1.10 | $4.40 |
| o3 Mini | $1.10 | $4.40 |
| GPT-5.4 Mini | $0.750 | $4.50 |
| Model | Input $/1M | Output $/1M |
|---|---|---|
| o4 Mini Deep Research | $2.00 | $8.00 |
| o3 | $2.00 | $8.00 |
| GPT-4.1 | $2.00 | $8.00 |
| GPT Audio | $2.50 | $10.00 |
| GPT-5.1-Codex-Max | $1.25 | $10.00 |
| GPT-5.1 | $1.25 | $10.00 |
| GPT-5.1 Chat | $1.25 | $10.00 |
| GPT-5.1-Codex | $1.25 | $10.00 |
| GPT-5 Image | $10.00 | $10.00 |
| GPT-5 Codex | $1.25 | $10.00 |
| GPT-4o Audio | $2.50 | $10.00 |
| GPT-5 Chat | $1.25 | $10.00 |
| GPT-5 | $1.25 | $10.00 |
| GPT-4o Search Preview | $2.50 | $10.00 |
| GPT-4o (2024-11-20) | $2.50 | $10.00 |
| GPT-4o (2024-08-06) | $2.50 | $10.00 |
| GPT-4o | $2.50 | $10.00 |
| GPT-5.3 Chat | $1.75 | $14.00 |
| GPT-5.3-Codex | $1.75 | $14.00 |
| GPT-5.2-Codex | $1.75 | $14.00 |
| GPT-5.2 Chat | $1.75 | $14.00 |
| GPT-5.2 | $1.75 | $14.00 |
| Model | Input $/1M | Output $/1M |
|---|---|---|
| GPT-5.4 | $2.50 | $15.00 |
| GPT-4o (2024-05-13) | $5.00 | $15.00 |
| GPT-4o (extended) | $6.00 | $18.00 |
| GPT-4 Turbo | $10.00 | $30.00 |
| GPT-4 Turbo Preview | $10.00 | $30.00 |
| GPT-4 Turbo (older v1106) | $10.00 | $30.00 |
| o3 Deep Research | $10.00 | $40.00 |
| o1 | $15.00 | $60.00 |
| GPT-4 (older v0314) | $30.00 | $60.00 |
| GPT-4 | $30.00 | $60.00 |
| o3 Pro | $20.00 | $80.00 |
| GPT-5 Pro | $15.00 | $120.00 |
| GPT-5.2 Pro | $21.00 | $168.00 |
| GPT-5.4 Pro | $30.00 | $180.00 |
| o1-pro | $150.00 | $600.00 |
| DALL-E 3 | Free | $40000.00 |
See how OpenAI API pricing stacks up against Anthropic (Claude) and Google (Gemini) models. All prices in USD per million tokens.
| Model | In | Out |
|---|---|---|
| gpt-oss-120b (free) | Free | Free |
| gpt-oss-20b (free) | Free | Free |
| Sora | Free | Free |
| gpt-oss-20b | $0.030 | $0.110 |
| gpt-oss-120b | $0.039 | $0.190 |
| gpt-oss-safeguard-20b | $0.075 | $0.300 |
| GPT-5 Nano | $0.050 | $0.400 |
| GPT-4.1 Nano | $0.100 | $0.400 |
| Model | In | Out |
|---|---|---|
| Claude 3 Haiku | $0.250 | $1.25 |
| Claude 3.5 Haiku | $0.800 | $4.00 |
| Claude Haiku 4.5 | $1.00 | $5.00 |
| Claude Sonnet 4.6 | $3.00 | $15.00 |
| Claude Sonnet 4.5 | $3.00 | $15.00 |
| Claude Sonnet 4 | $3.00 | $15.00 |
| Claude 3.7 Sonnet | $3.00 | $15.00 |
| Claude 3.7 Sonnet (thinking) | $3.00 | $15.00 |
| Model | In | Out |
|---|---|---|
| Gemma 3n 2B (free) | Free | Free |
| Gemma 3n 4B (free) | Free | Free |
| Gemma 3 4B (free) | Free | Free |
| Gemma 3 12B (free) | Free | Free |
| Gemma 3 27B (free) | Free | Free |
| Gemma 3n 4B | $0.020 | $0.040 |
| Gemma 3 4B | $0.040 | $0.080 |
| Gemma 2 9B | $0.030 | $0.090 |
Estimated daily and monthly costs for common usage patterns. Assumes an average of ~1,000 input tokens and ~500 output tokens per request.
| Model | $/1M In | $/1M Out |
|---|---|---|
| gpt-oss-20b | $0.030 | $0.110 |
| GPT-3.5 Turbo Instruct | $1.50 | $2.00 |
| GPT-5.1-Codex | $1.25 | $10.00 |
| GPT-5.4 | $2.50 | $15.00 |
| DALL-E 3 | Free | $40000.00 |
Note: Actual costs vary with prompt length, response length, prompt caching, and batch API discounts (50% off). OpenAI also offers volume discounts for enterprise customers. Try the interactive calculator for custom estimates.
OpenAI charges per token, not per request. A token is roughly 3/4 of a word. The sentence "Hello, how are you?" is about 6 tokens. Prices are quoted per million tokens. Input tokens (your prompts) are cheaper than output tokens (the model's response) because output generation requires more computation.
GPT-4o is OpenAI's flagship multimodal model with top-tier performance. GPT-4o Mini delivers strong results at a fraction of the cost, making it the go-to choice for high-volume production workloads where cost efficiency matters more than peak capability.
The o1 and o3 reasoning models use extended chain-of-thought to solve complex problems. This "thinking" process consumes additional tokens, making reasoning models more expensive per request. However, they often solve problems in fewer attempts, which can reduce total cost for difficult tasks.
Use prompt caching to reduce input costs by up to 90% for repeated prefixes. The Batch API offers 50% discounts for non-urgent workloads. Start with GPT-4o Mini and only upgrade to GPT-4o or o3 when the task requires it.
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GPT-4o pricing is $2.50/1M input tokens and $10.00/1M output tokens. A token is roughly 3/4 of a word, so 1 million tokens is approximately 750,000 words. For most conversational use cases, a single request costs fractions of a cent.
OpenAI offers 2 free models via their API. New accounts receive a small amount of free credits to get started. After that, usage is billed per token. For production use, you will need a paid account. Some models like GPT-4o Mini are extremely affordable for high-volume workloads.
The cheapest paid OpenAI model is gpt-oss-20b at $0.030/1M input and $0.110/1M output tokens. It offers 131K context window and supports function calling, and JSON mode.
OpenAI and Anthropic (Claude) have similar pricing structures. OpenAI's average output price is $685.02/1M tokens across 61 paid models. Anthropic offers 13 models with varying price points. For the most accurate comparison, see our side-by-side pricing table above which compares specific model tiers across both providers.
OpenAI charges per token for API usage. Tokens are the basic units of text -- roughly 3/4 of a word. Pricing is split into input tokens (your prompts and context) and output tokens (the model's response). Output tokens are typically more expensive because they require more computation. Prices are quoted per million tokens.
Yes. OpenAI's Batch API offers a 50% discount on input and output tokens for non-time-sensitive workloads. Batch requests are processed within a 24-hour window, making them ideal for data processing, content generation pipelines, and evaluation runs.