All model prices

GPT-5.5

OpenAI · gpt-5.5

GPT-5.5 from OpenAI: $5 per million input tokens, $30 per million output tokens, $0.5 per million cached input tokens.

Prices in US dollars per million units
RatePriceApplies
Input$5 per 1M input tokensOrdinary
Cached input$0.5 per 1M cached input tokensOrdinary
Output$30 per 1M output tokensOrdinary
Input$5.5 per 1M input tokenseu
Input$5.5 per 1M input tokensus
Input$2.75 per 1M input tokensBATCH tier, eu
Input$2.5 per 1M input tokensBATCH tier
Input$2.75 per 1M input tokensBATCH tier, us
Input$2.5 per 1M input tokensFLEX tier
Input$2.75 per 1M input tokensFLEX tier, us
Input$2.75 per 1M input tokensFLEX tier, eu
Input$13.75 per 1M input tokensPRIORITY tier, us
Input$13.75 per 1M input tokensPRIORITY tier, eu
Input$12.5 per 1M input tokensPRIORITY tier
Input$10 per 1M input tokensprompts over 272,000 tokens
Input$11 per 1M input tokensprompts over 272,000 tokens, eu
Input$11 per 1M input tokensprompts over 272,000 tokens, us
Input$5 per 1M input tokensBATCH tier, prompts over 272,000 tokens
Input$5.5 per 1M input tokensBATCH tier, prompts over 272,000 tokens, eu
Input$5.5 per 1M input tokensBATCH tier, prompts over 272,000 tokens, us
Input$5 per 1M input tokensFLEX tier, prompts over 272,000 tokens
Input$5.5 per 1M input tokensFLEX tier, prompts over 272,000 tokens, eu
Input$5.5 per 1M input tokensFLEX tier, prompts over 272,000 tokens, us
Cached input$0.55 per 1M cached input tokensus
Cached input$0.55 per 1M cached input tokenseu
Cached input$0.275 per 1M cached input tokensBATCH tier, us
Cached input$0.25 per 1M cached input tokensBATCH tier
Cached input$0.275 per 1M cached input tokensBATCH tier, eu
Cached input$0.25 per 1M cached input tokensFLEX tier
Cached input$0.275 per 1M cached input tokensFLEX tier, eu
Cached input$0.275 per 1M cached input tokensFLEX tier, us
Cached input$1.25 per 1M cached input tokensPRIORITY tier
Cached input$1.375 per 1M cached input tokensPRIORITY tier, eu
Cached input$1.375 per 1M cached input tokensPRIORITY tier, us
Cached input$1.1 per 1M cached input tokensprompts over 272,000 tokens, us
Cached input$1 per 1M cached input tokensprompts over 272,000 tokens
Cached input$1.1 per 1M cached input tokensprompts over 272,000 tokens, eu
Cached input$0.55 per 1M cached input tokensBATCH tier, prompts over 272,000 tokens, us
Cached input$0.5 per 1M cached input tokensBATCH tier, prompts over 272,000 tokens
Cached input$0.55 per 1M cached input tokensBATCH tier, prompts over 272,000 tokens, eu
Cached input$0.5 per 1M cached input tokensFLEX tier, prompts over 272,000 tokens
Cached input$0.55 per 1M cached input tokensFLEX tier, prompts over 272,000 tokens, us
Cached input$0.55 per 1M cached input tokensFLEX tier, prompts over 272,000 tokens, eu
Output$33 per 1M output tokenseu
Output$33 per 1M output tokensus
Output$16.5 per 1M output tokensBATCH tier, us
Output$16.5 per 1M output tokensBATCH tier, eu
Output$15 per 1M output tokensBATCH tier
Output$15 per 1M output tokensFLEX tier
Output$16.5 per 1M output tokensFLEX tier, eu
Output$16.5 per 1M output tokensFLEX tier, us
Output$82.5 per 1M output tokensPRIORITY tier, eu
Output$82.5 per 1M output tokensPRIORITY tier, us
Output$75 per 1M output tokensPRIORITY tier
Output$45 per 1M output tokensprompts over 272,000 tokens
Output$49.5 per 1M output tokensprompts over 272,000 tokens, eu
Output$49.5 per 1M output tokensprompts over 272,000 tokens, us
Output$24.75 per 1M output tokensBATCH tier, prompts over 272,000 tokens, eu
Output$24.75 per 1M output tokensBATCH tier, prompts over 272,000 tokens, us
Output$22.5 per 1M output tokensBATCH tier, prompts over 272,000 tokens
Output$24.75 per 1M output tokensFLEX tier, prompts over 272,000 tokens, us
Output$22.5 per 1M output tokensFLEX tier, prompts over 272,000 tokens
Output$24.75 per 1M output tokensFLEX tier, prompts over 272,000 tokens, eu
Released
23 Apr 2026
Most input tokens
1,050,000
Most output tokens
128,000