Model pricing
GPT-5.6 Sol API list price — cost per token
GPT-5.6 Sol costs $5.00 per million input tokens and $30.00 per million output tokens (USD).
| Token rate | USD / 1M tokens |
|---|---|
| Effortqualitative reasoning depth | High |
| Inputper 1M tokens | $5.00 |
| Output | $30.00 |
| Cache write · 5-minute1.25× input | $6.25 |
| Cache write · 1-hour2× input | $6.25 |
| Cache read0.1× input | $0.50 |
Notional list price. These are OpenAI (GPT-5.x / Codex) API list prices in USD. On a Codex subscription this is a notional list price — what usage would cost at API rates, not metered spend.
Cache & context economics
GPT-5.6 Sol adds cache reads at $0.50 / 1M — about a tenth of input, cache writes at $6.25 (5-minute) or $6.25 (1-hour) / 1M.
Common questions
- How much does GPT-5.6 Sol cost per million tokens?
- $5.00 input and $30.00 output per million tokens (USD list price).
- What is the cache-read price for GPT-5.6 Sol?
- $0.50 per million cached-read tokens — about a tenth of the input rate.
- How is cache writing priced for GPT-5.6 Sol?
- A 5-minute cache write is $6.25 and a 1-hour write is $6.25 per million tokens — the split most trackers miss.
Track your real cost with JP the Cat
A live menu-bar total, priced to the cent from your local logs — including the cache-write split most tools miss.
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