What is GPT API pricing?
GPT API pricing is the cost of using GPT-family models through API providers, usually measured by input tokens, output tokens, requests, or provider-specific billing units.
AI API pricing comparison
GPT API Pricing Comparison 2026
This page compares GPT API pricing across official OpenAI models, marketplace listings, and GPT OSS alternatives. Use it to compare token costs before choosing a provider.
Need a provider shortlist? Submit your model, usage volume, region, and budget. Inferras helps organize provider options before you contact vendors.
Helpful comparisons:OpenAI API pricing
TLDR
This page compares GPT API pricing across official OpenAI models, marketplace listings, and GPT OSS alternatives. Use it to compare token costs before choosing a provider.
Best for
Teams comparing public pricing before choosing a model API, marketplace route, or provider shortlist.
Looking for provider options beyond official APIs?
Compare AI API reseller options, pricing models and risk factors on Inferras before choosing which providers to contact.
GPT API pricing approved price listings
Public comparison pages only show approved price listings with source links, verification status, and last checked dates.
| Model | Provider | Provider category | Region | Input / 1M | Output / 1M | Source | Verification | Checked | Updated | View |
|---|---|---|---|---|---|---|---|---|---|---|
gpt-5.2 | AICopy API | Submitted provider | China / Global | CN¥0.25 | CN¥2.00 | resellerSource | Source listed | May 15, 2026 | May 15, 2026 | View |
gpt-5.4 | AICopy API | Submitted provider | China / Global | CN¥0.50 | CN¥3.00 | resellerSource | Source listed | May 15, 2026 | May 15, 2026 | View |
gpt-5.5 | AICopy API | Submitted provider | China / Global | CN¥0.50 | CN¥3.00 | resellerSource | Source listed | May 15, 2026 | May 15, 2026 | View |
gpt-5.4-mini | AICopy API | Submitted provider | China / Global | CN¥0.75 | CN¥4.50 | resellerSource | Source listed | May 15, 2026 | May 15, 2026 | View |
gpt-5.3-codex | AICopy API | Submitted provider | China / Global | CN¥1.75 | CN¥14.00 | resellerSource | Source listed | May 15, 2026 | May 15, 2026 | View |
GPT-5.5-对话Chat route / Variant | AICopy API | Submitted provider | China / Global | CN¥5.00 | CN¥30.00 | resellerSource | Source listed | May 15, 2026 | May 15, 2026 | View |
Groq GPT OSS 20B 128k | GroqOfficial source | Official model owner | Global | $0.075 | $0.30 | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
Groq GPT OSS 120B 128k | GroqOfficial source | Official model owner | Global | $0.15 | $0.60 | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
OpenAI: GPT-4o-mini | OpenRouterOfficial source | Official model owner | Global | $0.15 | $0.60 | marketplaceSource | Source listed | May 10, 2026 | May 10, 2026 | View |
Together AI gpt-oss-120B | Together AIOfficial source | Official model owner | Global | $0.15 | $0.60 | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
GPT-5.4 mini | OpenAIOfficial source | Official model owner | Global | $0.75 | $4.50 | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
OpenAI: GPT-4o | OpenRouterOfficial source | Official model owner | Global | $2.50 | $10.00 | marketplaceSource | Source listed | May 10, 2026 | May 10, 2026 | View |
GPT-5.4 | OpenAIOfficial source | Official model owner | Global | $2.50 | $15.00 | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
GPT-Realtime-2 text | OpenAIOfficial source | Official model owner | Global | $4.00 | $24.00 | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
GPT-5.5 | OpenAIOfficial source | Official model owner | Global | $5.00 | $30.00 | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
Verification indicates how confidently the listed price matches its public source.
Prices are collected from public provider pages and may change over time. Verify pricing, billing units, rate limits, and terms directly on the source page before purchase.
Source note: Source links open public provider pages. Prices may change over time.
FAQ
GPT API pricing
Is GPT API pricing only from OpenAI?
No. OpenAI provides official GPT models, but marketplaces, reseller routes, and GPT OSS providers may also expose GPT-related or GPT-compatible model listings.
What is the difference between OpenAI GPT models and GPT OSS models?
OpenAI GPT models are official OpenAI model families. GPT OSS models are open or independently hosted GPT-style alternatives, often served through marketplaces or infrastructure providers.
Which GPT API is cheapest?
The cheapest GPT API depends on input price, output price, model quality, provider type, and terms. Cheap routes should still be checked for reliability and source transparency.
How should developers compare GPT API providers?
Compare token pricing, source links, model availability, route type, rate limits, region, data policy, support, and whether the provider is official, marketplace, or submitted.