OpenAIGPT-5.6 Sol
OpenAI's GPT-5.6 flagship for complex professional work and long-horizon agents. The gpt-5.6 API alias routes here; 1.05M context with tiered pricing above 272K input tokens.
Source: OpenAI models, OpenAI pricing
Pricing
Every billing leg from the live catalog, in USD per 1M tokens.
| Billing leg | Standard | Long context | Batch |
|---|---|---|---|
| Input | $5 / M | $10 / M | $2.5 / M |
| Output | $30 / M | $45 / M | $15 / M |
| Cache read | $0.5 / M | $1 / M | $0.25 / M |
| Cache write | $6.25 / M | $12.5 / M | $3.13 / M |
Long-context rates apply above 272,000 input tokens.
Cost calculator
Billing-grade math over the rate card above, including the thinking tokens most estimates miss.
Hidden reasoning tokens bill as output. 1.0x = thinking off. Medium-effort reasoning typically lands near 3x; heavy reasoning runs 6x to 8x. Set it to match your workload.
Provider
Where this model runs, and what it charges.
| Platform | Input / M | Output / M | Cache read / M | Batch | Access |
|---|---|---|---|---|---|
OpenAI | $5 | $30 | $0.5 | ✓ | First-party API |
Price history
Has this model gotten cheaper or more expensive?
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