OpenAI: GPT-5.6 Sol Pro
Frontier GPT-5.6 model for complex professional work, coding, and agentic workflows
Cheapest input
$2
$/MTok · OpenRouter
Cheapest output
$10
$/MTok
Context
1.1M
tokens
Sources
3
9 listings
Price changes
Cheapest list input/output only. Rates move rarely, so this is an event log. Down means cheaper. Showing the 8 latest changes.
- ↑ higherOutput $5 → $10
- ↑ higherInput $1 → $2
- ↓ lowerOutput $10 → $5
- ↓ lowerInput $2 → $1
- ↑ higherOutput $5 → $10
- ↑ higherInput $1 → $2
- ↓ lowerOutput $30 → $5
- ↓ lowerInput $5 → $1
Sources
Same model, different sources. Our first-party rate is listed first, then router and aggregator rows stay separate so you can see the spread instead of a single blended number.
| Source | Provider | Input | Output | Cache read | Context |
|---|---|---|---|---|---|
| OpenRoutercheapestopenai/gpt-5.6-sol-pro:batch | OpenRouter | $2 | $10 | $0.2 | 1.1M |
| models.devopenai/gpt-5.6-sol-pro | Kilo Gateway | $4 | $20 | $0.4 | 1.1M |
| models.devopenai/gpt-5.6-sol-pro | NanoGPT | $4 | $20 | $0.4 | 1.1M |
| OpenRouteropenai/gpt-5.6-sol-pro | OpenRouter | $4 | $20 | $0.4 | 1.1M |
| models.devopenai/gpt-5.6-sol-pro | AI/ML API | $4.23 | $21.16 | $0.4232 | 1.1M |
| models.devopenai/gpt-5.6-sol-pro | Prime Inference | $5 | $30 | $0 | 1.1M |
| models.devgpt-5.6-sol-pro | 302.AI | $5 | $30 | $0.5 | 1.1M |
| LiteLLMgpt-5.6-sol-pro | N/A | $5.40 | $27 | $0.675 | N/A |
| LiteLLMkyma/gpt-5.6-sol-pro | N/A | $5.40 | $27 | $0.675 | N/A |
Capabilities
- Reasoning
- Tool calling
- Structured output
- Attachments
- In: text
- In: image
- In: pdf
- In: file
- Out: text
Knowledge cutoff: 2026-02-16Released: 2026-07-09Output limit: 128K tokensFamily: gpt-sol
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