OpenAI · Pricing Plans

Openai Plans Pricing

OpenAI sells API access purely on metered token consumption — there are no seat plans, no monthly subscription tiers and no free-forever allowance on the API itself. The plan axis is the MODEL and the discount axis is the SERVICE TIER, and the two multiply: the same model costs half as much through the Batch API and twice as much in Fast mode. Prices moved down three times in the four weeks before this read (GPT-5.6 Luna -80%, Terra -20% on 2026-07-30; Sol to $4/$20 on 2026-08-21), so any cached copy of this page ages badly. Note the one uplift: regional processing adds 10% for models released on or after 2026-03-05. Access tiers (Free through Tier 5) are a RATE-LIMIT construct, not a price construct, and live in rate-limits/openai-rate-limits.yml.

Openai Plans Pricing is the machine-readable pricing-plan profile for OpenAI on the APIs.io network, conforming to the API Commons Plans specification.

It defines 13 plans, covering usage-based tiers, with named plans including GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.6 Luna, GPT-5.5, GPT-5.5 Pro, and 8 more.

Tagged areas include AI, LLM, GPT, Foundation Models, and Usage-Based Pricing.

13 Plans API Commons Plans
View Source
AILLMGPTFoundation ModelsUsage-Based Pricing

Plans

GPT-5.6 Sol usage-based

Flagship reasoning model. Price reduced 2026-08-21 and held through at least 2026-11-21.

Input tokens (tokens · usage) 4.00 USD
Output tokens (tokens · usage) 20.00 USD
GPT-5.6 Terra usage-based

General-purpose flagship. Price reduced 20% on 2026-07-30.

Input tokens (tokens · usage) 2.00 USD
Output tokens (tokens · usage) 12.00 USD
GPT-5.6 Luna usage-based

Low-cost model. Price reduced 80% on 2026-07-30.

Input tokens (tokens · usage) 0.20 USD
Output tokens (tokens · usage) 1.20 USD
GPT-5.5 usage-based

Previous flagship general-purpose model.

Input tokens (tokens · usage) 5.00 USD
Output tokens (tokens · usage) 30.00 USD
GPT-5.5 Pro usage-based

Highest reasoning tier.

Input tokens (tokens · usage) 30.00 USD
Output tokens (tokens · usage) 180.00 USD
GPT-5 usage-based

Prior generation flagship.

Input tokens (tokens · usage) 1.25 USD
Output tokens (tokens · usage) 10.00 USD
GPT-5 Mini usage-based

Prior generation small model.

Input tokens (tokens · usage) 0.25 USD
Output tokens (tokens · usage) 2.00 USD
o3 usage-based

Reasoning model.

Input tokens (tokens · usage) 2.00 USD
Output tokens (tokens · usage) 8.00 USD
o3 Mini usage-based

Small reasoning model.

Input tokens (tokens · usage) 1.10 USD
Output tokens (tokens · usage) 4.40 USD
o1 usage-based

Legacy reasoning model. Shutdown announced 2026-04-22 for 2026-10-23.

Input tokens (tokens · usage) 15.00 USD
Output tokens (tokens · usage) 60.00 USD
GPT-4o usage-based

Legacy multimodal model.

Input tokens (tokens · usage) 2.50 USD
Output tokens (tokens · usage) 10.00 USD
GPT-4o Mini usage-based

Legacy small multimodal model.

Input tokens (tokens · usage) 0.15 USD
Output tokens (tokens · usage) 0.60 USD
GPT-3.5 Turbo usage-based

Legacy model. Shutdown announced 2026-04-22 for 2026-10-23.

Input tokens (tokens · usage) 0.50 USD
Output tokens (tokens · usage) 1.50 USD

Sources

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