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API pricing

OpenAI API pricing

OpenAI API prices run from $0.018 per million input tokens (gpt-oss-20b) to $150 (o1-pro). Its highest-ranked model, GPT-6 Astra, costs $10 input and $50 output per million tokens.

Last verified

Official price list: openai.com

Cached input
gpt-oss-20b (open weights)$0.018$0.09$0.009$0.036131K32.5
gpt-oss-120b (open weights)$0.037$0.17—$0.0703131K36.3
GPT-5 Nano$0.05$0.40$0.005$0.14400K33.5
GPT-4.1 nano$0.10$0.40$0.025$0.181.05M27.9
GPT-6 Luna$0.10$0.50$0.01$0.201.05M53.3
GPT-6 Luna Pro$0.10$0.50$0.01$0.201.05M—
GPT-4o mini$0.15$0.60$0.075$0.26128K25.5
GPT-5.6 Luna$0.20$1.20$0.02$0.451.05M54.6
GPT-5.6 Luna Pro$0.20$1.20$0.02$0.451.05M—
GPT-5.4 nano$0.20$1.25$0.02$0.46400K41.9
GPT-5 Mini$0.25$2$0.025$0.69400K41.8
GPT-5.1-Codex-mini$0.25$2$0.025$0.69400K—
GPT-4.1 mini$0.40$1.60$0.10$0.701.05M33.6
GPT-3.5-turbo$0.50$1.50Free$0.7516K23.2
GPT-5.4 mini$0.75$4.50$0.075$1.69400K45.0
o3-mini$1.10$4.40$0.55$1.93200K36.7
o4-mini$1.10$4.40$0.28$1.93200K41.6
GPT-5$1.25$10$0.13$3.44400K50.9
GPT-5-Codex$1.25$10$0.13$3.44400K37.9
GPT-5.1$1.25$10$0.13$3.44400K49.0
GPT-5.1-Codex$1.25$10$0.13$3.44400K38.6
GPT-4.1$2$8$0.50$3.501.05M35.9
o3$2$8$0.50$3.50200K47.5
GPT-5.6 Sol Pro$2$10$0.20$41.05M—
GPT-6 Sol$2$10$0.20$41.05M61.8
GPT-6 Sol Pro$2$10$0.20$41.05M—
GPT-6.1 Sol$2$10$0.10$41.05M65.6
GPT-6.1 Sol Pro$2$10$0.10$41.05M—
GPT-4o$2.50$10$1.25$4.38128K28.6
GPT-5.6 Terra$2$12$0.20$4.501.05M59.2
GPT-5.6 Terra Pro$2$12$0.20$4.501.05M—
GPT-5.2$1.75$14$0.17$4.81400K54.1
GPT-5.2 Codex$1.75$14$0.17$4.81400K42.6
GPT-5.3 Chat$1.75$14$0.17$4.81128K42.8
GPT-5.3 Codex$1.75$14$0.17$4.81400K45.8
GPT-5.3 Codex Spark$1.75$14$0.17$4.81128K—
GPT-5.4$2.50$15$0.25$5.631.05M59.4
GPT-5.6$4$20$0.40$81.05M—
GPT-5.6 Sol$4$20$0.40$81.05M65.0
GPT-5.5$5$30$0.50$11.251.05M63.4
GPT-4 Turbo$10$30—$15128K30.5
GPT-6 Astra$10$50$1$201.05M70.8
GPT-6 Astra Pro$10$50$1$201.05M—
o1$15$60$7.50$26.25200K40.9
o3-pro$20$80—$35200K42.9
GPT-4$30$60—$37.508K29.1
GPT-5 Pro$15$120—$41.25400K46.4
GPT-5.2 Pro$21$168—$57.75400K52.3
GPT-5.4 Pro$30$180—$67.501.05M58.9
GPT-5.5 Pro$30$180—$67.501.05M64.3
o1-pro$150$600—$263200K31.5

Prices on other platforms

The same models are often sold through clouds and resellers at different rates.

ModelRouteInputOutputChecked
GPT-6 Astraazure$10$502026-10-10
bedrock$10$502026-10-10
openai$10$502026-10-10
openrouter$10$502026-10-10
GPT-6.1 Solazure$2$102026-10-10
bedrock$2$102026-10-10
openai$2$102026-10-10
openrouter$2$102026-10-10
GPT-5.6 Solazure$4$202026-10-10
bedrock$4$202026-10-10
openai$4$202026-10-10
openrouter$2$102026-10-10
GPT-5.5 Proopenai$30$1802026-10-10
openrouter$30$1802026-10-10
GPT-5.5azure$5$302026-10-10
bedrock$5.50$332026-10-10
openai$5$302026-10-10
openrouter$5$302026-10-10
GPT-6 Solazure$2$102026-10-10
bedrock$2$102026-10-10
openai$2$102026-10-10
openrouter$2$102026-10-10
GPT-5.4azure$2.50$152026-10-10
bedrock$2.75$16.502026-10-10
openai$2.50$152026-10-10
openrouter$2.50$152026-10-10
GPT-5.6 Terraazure$2$122026-10-10
bedrock$2$122026-10-10
openai$2$122026-10-10
openrouter$2$122026-10-10
GPT-5.4 Proazure$30$1802026-10-10
openai$30$1802026-10-10
openrouter$30$1802026-10-10
GPT-5.6 Lunaazure$0.20$1.202026-10-10
bedrock$0.20$1.202026-10-10
openai$0.20$1.202026-10-10
openrouter$0.20$1.202026-10-10
GPT-5.2azure$1.75$142026-10-10
openai$1.75$142026-10-10
openrouter$1.75$142026-10-10
GPT-6 Lunaazure$0.10$0.502026-10-10
bedrock$0.10$0.502026-10-10
openai$0.10$0.502026-10-10
openrouter$0.10$0.502026-10-10
GPT-5.2 Proopenai$21$1682026-10-10
openrouter$21$1682026-10-10
GPT-5azure$1.25$102026-10-10
openai$1.25$102026-10-10
openrouter$1.25$102026-10-10
GPT-5.1azure$1.25$102026-10-10
openai$1.25$102026-10-10
openrouter$1.25$102026-10-10
o3azure$2$82026-10-10
openai$2$82026-10-10
openrouter$2$82026-10-10
GPT-5 Proazure$15$1202026-10-10
openai$15$1202026-10-10
openrouter$15$1202026-10-10
GPT-5.3 Codexazure$1.75$142026-10-10
openai$1.75$142026-10-10
openrouter$1.75$142026-10-10
GPT-5.4 miniazure$0.75$4.502026-10-10
openai$0.75$4.502026-10-10
openrouter$0.75$4.502026-10-10
o3-proopenai$20$802026-10-10
openrouter$20$802026-10-10
GPT-5.3 Chatopenai$1.75$142026-10-10
GPT-5.2 Codexazure$1.75$142026-10-10
openrouter$1.75$142026-10-10
GPT-5.4 nanoazure$0.20$1.252026-10-10
openai$0.20$1.252026-10-10
openrouter$0.20$1.252026-10-10
GPT-5 Miniazure$0.25$22026-10-10
openai$0.25$22026-10-10
openrouter$0.25$22026-10-10
o4-miniazure$1.10$4.402026-10-10
openai$1.10$4.402026-10-10
openrouter$1.10$4.402026-10-10
o1azure$15$602026-10-10
openai$15$602026-10-10
openrouter$15$602026-10-10
GPT-5.1-Codexazure$1.25$102026-10-10
openrouter$1.25$102026-10-10
GPT-5-Codexazure$1.25$102026-10-10
o3-miniazure$1.10$4.402026-10-10
openai$1.10$4.402026-10-10
openrouter$1.10$4.402026-10-10
gpt-oss-120bbedrock$0.15$0.602026-10-10
cerebras$0.35$0.752026-10-10
deepinfra$0.037$0.172026-10-10
fireworks$0.15$0.602026-10-10
groq$0.15$0.602026-10-10
openrouter$0.037$0.172026-10-10
together$0.15$0.602026-10-10
vertex$0.09$0.362026-10-10
GPT-4.1azure$2$82026-10-10
openai$2$82026-10-10
openrouter$2$82026-10-10
GPT-4.1 miniazure$0.40$1.602026-10-10
openai$0.40$1.602026-10-10
openrouter$0.40$1.602026-10-10
GPT-5 Nanoazure$0.05$0.402026-10-10
openai$0.05$0.402026-10-10
openrouter$0.05$0.402026-10-10
gpt-oss-20bbedrock$0.07$0.302026-10-10
deepinfra$0.03$0.142026-10-10
groq$0.075$0.302026-10-10
openrouter$0.018$0.092026-10-10
vertex$0.07$0.252026-10-10
o1-proopenai$150$6002026-10-10
openrouter$150$6002026-10-10
GPT-4 Turboazure$10$302026-10-10
openai$10$302026-10-10
openrouter$10$302026-10-10
GPT-4openai$30$602026-10-10
openrouter$30$602026-10-10
GPT-4oazure$2.50$102026-10-10
openai$2.50$102026-10-10
openrouter$2.50$102026-10-10
GPT-4.1 nanoazure$0.10$0.402026-10-10
openai$0.10$0.402026-10-10
openrouter$0.10$0.402026-10-10
GPT-4o miniazure$0.15$0.602026-10-10
openai$0.15$0.602026-10-10
openrouter$0.15$0.602026-10-10
GPT-3.5-turboazure$0.50$1.502026-10-10
openai$0.50$1.502026-10-10
openrouter$0.50$1.502026-10-10
GPT-5.1-Codex-miniazure$0.25$22026-10-10
openrouter$0.25$22026-10-10
GPT-5.3 Codex Sparkopenai$1.75$142026-10-10
GPT-5.6openai$4$202026-10-10
GPT-5.6 Luna Proopenrouter$0.20$1.202026-10-10
GPT-5.6 Sol Proopenrouter$2$102026-10-10
GPT-5.6 Terra Proopenrouter$2$122026-10-10
GPT-6.1 Sol Proopenrouter$2$102026-10-10
GPT-6 Astra Proopenrouter$10$502026-10-10
GPT-6 Luna Proopenrouter$0.10$0.502026-10-10
GPT-6 Sol Proopenrouter$2$102026-10-10

Frequently asked questions

How much does the OpenAI API cost?

OpenAI API prices run from $0.018 per million input tokens (gpt-oss-20b) to $150 (o1-pro). Its highest-ranked model, GPT-6 Astra, costs $10 input and $50 output per million tokens.

Does OpenAI discount cached input?

Yes. Cached input is billed at a lower rate on 41 of the 51 priced models; the cached rate is listed next to each model.