How much does GPT API cost?
Costs vary by model, provider, source type, and pricing tier. The table shows approved listings normalized to input and output price per 1M tokens where available.
AI API pricing comparison
GPT API Pricing Comparison
Use this GPT API pricing comparison to review approved GPT-related listings across official and marketplace providers with source links and verification badges.
TLDR
Use this GPT API pricing comparison to review approved GPT-related listings across official and marketplace providers with source links and verification badges.
Best for
Teams comparing public pricing before choosing a model API, marketplace route, or provider shortlist.
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 | Region | Input / 1M | Output / 1M | Latency | Uptime | Source | Verification | Checked | Updated | View |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Groq GPT OSS 20B 128k | GroqVerified | Global | $0.075 | $0.30 | N/A | N/A | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
| Groq GPT OSS 120B 128k | GroqVerified | Global | $0.15 | $0.60 | N/A | N/A | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
| Together AI gpt-oss-120B | Together AIVerified | Global | $0.15 | $0.60 | N/A | N/A | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
| OpenAI: GPT-4o-mini | OpenRouterVerified | Global | $0.15 | $0.60 | N/A | N/A | marketplaceSource | Source listed | May 10, 2026 | May 10, 2026 | View |
| GPT-5.4 mini | OpenAIVerified | Global | $0.75 | $4.50 | N/A | N/A | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
| OpenAI: GPT-4o | OpenRouterVerified | Global | $2.50 | $10.00 | N/A | N/A | marketplaceSource | Source listed | May 10, 2026 | May 10, 2026 | View |
| GPT-5.4 | OpenAIVerified | Global | $2.50 | $15.00 | N/A | N/A | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
| GPT-Realtime-2 text | OpenAIVerified | Global | $4.00 | $24.00 | N/A | N/A | officialSource | Source listed | May 10, 2026 | May 10, 2026 | View |
| GPT-5.5 | OpenAIVerified | Global | $5.00 | $30.00 | N/A | N/A | 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. Use the source links to confirm the latest provider pricing.
Source note: Source links open public provider pages. Prices may change over time.
FAQ
GPT API pricing
Which provider offers the cheapest GPT API?
Sort and compare the table by input and output price, then verify current terms directly with the provider before purchase.
Are these GPT prices official?
Some listings are official provider prices and others may be marketplace prices. Use the source type, verification badge, and source link to review each listing.
Why should I verify the source before purchasing?
AI API prices change frequently, and providers may offer different tiers, regional availability, rate limits, or enterprise terms.