OpenAI API Pricing: Plans & Features 2026
From $0 pay-as-you-go to custom enterprise rates, pay only for what you use instead of flat-rate monthly subscriptions.
OpenAI API plans and pricing
Pay-as-you-go
$0.15/1M tokensBest for: Get full access to GPT-4o and GPT-4 with token-based billing and no monthly base fee ($0/mo)
- ✓Access to GPT-4o, GPT-4o-mini, o1-preview, and o1-mini models
- ✓Pay-per-token pricing for input, output, and cached tokens
- ✓Fine-tuning API access for custom model training
- ✓Access to Assistants API, Embeddings, and DALL-E image generation
- ✓Text-to-Speech (TTS) and Speech-to-Text (Whisper) APIs
Enterprise
Contact SalesBest for: This plan offers provisioned throughput, enterprise-grade security, and custom rate limits
- ✓Provisioned Throughput for dedicated capacity and consistent latency
- ✓Enterprise-grade security, SOC 2 compliance, and zero data training
- ✓Custom rate limits and higher usage thresholds
- ✓Dedicated account management and engineering support
- ✓Single Sign-On (SSO) and advanced access controls
OpenAI API pricing: the quick answer
OpenAI API's flagship GPT-4o costs $2.50 per 1M input tokens and $10 per 1M output as of July 2, 2026, with cheaper and pricier models on the same catalog and no monthly subscription. Pay-as-you-go is free to start: GPT-4o Mini is $0.15/1M input and $0.60/1M output, o3 is $10/1M input and $40/1M output. Enterprise is custom with provisioned throughput. The Batch API cuts every model rate by 50%, and cached input tokens take another 50% off on GPT-4o and o-series. Stack both and the effective rate drops well below the headline.
OpenAI API is free to start, against a $7.99/mo median across 11 large language models tools we track.
OpenAI API cost calculator
What OpenAI API really costs
There is no seat price to break down. The bill is set entirely by which model you call, how many tokens flow, and which discounts apply, batch or caching.
Pricing Expert Take
Independent analysis · OpenAI API
Value Analysis
OpenAI API bypasses the category median price of $8.4/mo by offering a pure Pay-as-you-go model with no monthly subscription fee. Users only pay for the exact tokens they consume across leading models like GPT-4o and o1-mini, making it highly cost-effective for light developers compared to flat-rate subscriptions. For scaled enterprise needs, the Enterprise plan introduces custom pricing with dedicated capacity through Provisioned Throughput and zero data training.
Hidden Costs
- Token consumption inflation from long chat histories and system prompts.
- Fine-tuning API costs for custom model training and hosting.
- Image generation via DALL-E and audio processing via Whisper APIs billed separately.
- Rate limit tier thresholds that require upfront credit deposits to unlock higher tiers.
Red Flags
Users warn that complex workflows and multi-agent setups can drain credits unexpectedly fast, with some burning through $10 in just a few prompts. Rate limit errors also frequently disrupt development for beginners on lower usage tiers.
"WTF, the API cost is crazy expensive. I burned **$10** in just 5 to 6 prompts"
Based on analysis of recent Reddit and G2 discussions.
Green Wins
Even the free tier offers access to state-of-the-art models like GPT-4o and DALL-E 3 - strong value at no cost.
- Access to state-of-the-art models like GPT-4o and DALL-E 3
- Comprehensive platform: text, vision, audio, and embeddings in one API
- Extensive documentation and a massive developer community for support
"Users consistently praise the software for its user-friendly interface and accurate transcription capabilities"
G2
"Users find Azure OpenAI Service's ease of use exceptional, with smooth integration and beginner-friendly"
G2
"The website is very easy to use, providing payload examples and very detailed user"
Capterra
User Voices
"Sign up to platform.openai.com instead of ChatGPT, because then you only get charged for the tokens"
Reddit (positive)
"WTF, the API cost is crazy expensive."
Reddit (negative)
Verdict
The Pay-as-you-go plan is perfect for developers and startups who want to pay strictly for what they build and run. Large organizations requiring dedicated throughput and SOC 2 compliance should opt for the Enterprise plan. If you prefer a flat-rate model, consider Claude at $20/mo.
OpenAI API price history
Cheaper Large Language Models tools
Frequently asked questions
How does OpenAI API pricing compare?
See how OpenAI API's 2 pricing plans stack up against similar Large Language Models tools.
Research Reports
Sources & Data Trail · OpenAI API
- 1.Official Pricing Page·Source of verified tiers(Checked: 2026-07-02)
- 2.Official Website·Official vendor website
- 3.G2·G2 verified user reviews · 4.7/5 · 11 reviews
- 4.TrustRadius·TrustRadius verified reviews
- 5.PeerSpot·PeerSpot enterprise peer reviews