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GPT-5.6 Sol (OpenAI)
openai·openai/gpt-5.6-sol-2·GA·Closed·gpt-sol series·NEW
Frontier GPT-5.6 model for complex professional work, coding, and agentic workflows
At a glance
Reference price$5.00 / $30.00 per 1M
Cache read $0.50 · LLM Gateway
Lowest paid$5.00 / $30.00
LLM Gateway Gateway
Context1,050,000
Output limit128,000
Capabilities
✓ Reasoning✓ Tool use✓ Structured outputTemperature✓ Attachments
Modalities
TextImagePDF
Knowledge cutoff2026-02-16
Released / updated2026-07-09 / 2026-07-09
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 1 providers1 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| LLM Gateway openai/gpt-5.6-sol | Gateway | $5.00 | $30.00 | $0.50 | $6.25 | 1,050,000 | 128,000 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1LLM Gateway$1,960.00
The cheapest paid channel is the only channel.
Benchmark
No upstream benchmark data for this model. For quality, see the Artificial Analysis intelligence score above.
Reasoning control
effort = noneeffort = loweffort = mediumeffort = higheffort = xhigheffort = max
Related models
GPT-5.6 Solsame series$5.00 / $30.00GPT-5.6 Sol Prosame series$6.25 / $37.50GPT-5.6same series$5.00 / $30.00GLM-5.2cheaper alternative$1.40 / $4.40DeepSeek V4 Procheaper alternative$0.435 / $0.87DeepSeek V4 Flashcheaper alternative$0.14 / $0.28Kimi K3cheaper alternative$3.00 / $15.00
Price historyone sample accumulated per data sync
Input listOutput listMin blended