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GPT 5.6 Sol Pro API price
openai/gpt-5.6-sol-pro
The cheapest GPT 5.6 Sol Pro API is $1.00/M input at OpenAI (via OpenRouter) - all 2 providers compared below, per 1M tokens.
FlagshipOpenAI1.1M context2 sellers
Input
$1.00
per 1M tokens · OpenAI (via OpenRouter)
up to $5.00
Output
$5.00
per 1M tokens · OpenAI (via OpenRouter)
up to $30.00
Where to buy it
Cheapest GPT 5.6 Sol Pro API providers compared - 2 sellers, from $1.00/M.
| Provider | Input $/M | Output $/M | Cached in | Uptime |
|---|---|---|---|---|
| OpenAI (via OpenRouter) | 1.00cheapest | 5.00 | 0.100 | 100% |
| Azure (via OpenRouter) | 5.00 | 30.00 | 0.500 | - |
5.0× between the cheapest and the dearest of 2 sellers.
Against its tier
- This model$6.00
- Cheapest · GLM 5.3 Flash$0.29
- Tier median · Grok 4.6$8.00
- Dearest · GPT 5.5 Pro (04-23 snapshot)$330.00
#13 of 31 flagship · cheaper than 60%
Details
- Context window
- 1.1M1,050,000 tokens
- Developer
- OpenAI
- Sellers
- 25.0× spread
- Cheapest at
- OpenAI (via OpenRouter)
- Cached input
- $0.10where the source publishes one
- Combined
- $6.00in + out per 1M
- Last checked
- 2026-08-28
- Availability
- 100.00%median of 3 OpenRouter endpoints, last 30 min