OpenAI · LLM API Modelactive

gpt-5.6-sol

gpt-5.6-sol costs $4.00 per 1M input tokens, $0.40 cached input and $20.00 per 1M output tokens. Batch API: $2.00 input, $10.00 output.

Updated September 21, 2026
Input / 1M
$4.00
Output / 1M
$20.00
Cached Input
$0.40
Context Window
922K
Standard Input
$4.00 / 1M
Base prompt input rate
Standard Output
$20.00 / 1M
Completion output rate
Prompt Caching -50%
$0.40 / 1M
Cached prompt context
Batch API -50%
$2.00 / 1M
Asynchronous 24h batch

Save up to 50% on OpenAI API token spend

Connect your OpenAI account — we'll optimize Batch API workflows and prompt caching efficiency.

Book a demo Connect OpenAI — free

Flagship models

All rates listed in USD per 1 Million (1M) tokens unless noted

StandardBatchFlexFast mode
Pricing Metric / Parameter
Standard RATE
(per 1M)
Batch RATE
(per 1M)
Flex RATE
(per 1M)
Fast mode RATE
(per 1M)
Short context input$4.00$2.00$2.00$8.00
Short context cached input$0.40$0.20$0.20$0.80
Short context cache writes$5.00$2.50$2.50$10.00
Short context output$20.00$10.00$10.00$40.00
Long context input$8.00$4.00$4.00$16.00
Long context cached input$0.80$0.40$0.40$1.60
Long context cache writes$10.00$5.00$5.00$20.00
Long context output$30.00$15.00$15.00$60.00

Cyber models

All rates listed in USD per 1 Million (1M) tokens unless noted

Standard
Pricing Metric / Parameter
Standard RATE
(per 1M)
Short context input$4.00
Short context cached input$0.40
Short context cache writes$5.00
Short context output$20.00
Long context input$8.00
Long context cached input$0.80
Long context cache writes$10.00
Long context output$30.00

Source: OpenAI official pricing page, verified 2026-09-21. Prices in USD per 1M tokens.

AI / LLM
LLM API Cost Comparison

Compare OpenAI model costs against Anthropic & Gemini

Use our free LLM Cost Calculator to benchmark gpt-5.6-sol token rates, Batch API discounts, and monthly estimated spend side-by-side with leading AI models.

Open LLM Cost Calculator →