GPT-5.6 Sol API pricing
Standard tier, blended at 3:1 input to output: $8.00 per million tokens.
OpenAI charges $4.00 per million input tokens and $20.00 per million output tokens for GPT-5.6 Sol. It is sold in 5 forms, from $4.00 to $8.00 blended; the table below shows what each costs against standard. 2 of the models nearest it in price are cheaper on a blended basis.
Every tier of GPT-5.6 Sol
Blended at 3:1 input to output. The last column compares each against the standard tier.
| Source | ||||||||
|---|---|---|---|---|---|---|---|---|
| Standard Standard | gpt-5.6-sol | OpenAI | $4.00 | $20.00 | $0.400 | $8.00 | Standard | ↗ |
| Standard | gpt-5.6-sol | OpenRouter | $4.00 | $20.00 | $0.400 | $8.00 | Same | ↗ |
| Batch | gpt-5.6-sol:batch | OpenRouter | $2.00 | $10.00 | $0.200 | $4.00 | −50% | ↗ |
| Pro | gpt-5.6-sol-pro | OpenRouter | $4.00 | $20.00 | $0.400 | $8.00 | Same | ↗ |
| Pro · Batch | gpt-5.6-sol-pro:batch | OpenRouter | $2.00 | $10.00 | $0.200 | $4.00 | −50% | ↗ |
Prices last checked: . Methodology
Which tier to use
What each costs against standard in our data, and the job it is for.
Batch
The batch tier (gpt-5.6-sol:batch) is 50% cheaper than standard. Batch requests are queued and answered asynchronously, typically within 24 hours, so it suits work nobody is waiting on: evaluations, back-fills, bulk classification and tagging. Anything a user is waiting on belongs on the standard tier.
Pro
gpt-5.6-sol-pro is the same price as standard. Pro tiers spend more compute on each request. At this price the trade-off is latency rather than cost: expect slower answers. Pro is also sold as batch (gpt-5.6-sol-pro:batch), 50% cheaper than standard, for hard problems that can wait a day.
Direct or through a reseller
Through OpenRouter, gpt-5.6-sol is the same price as buying direct. A reseller is worth it for one bill across vendors and automatic fallback; buy direct for the vendor's own batch, caching and rate-limit terms.
Against the models nearest in price
Standard tiers, blended at a 3:1 input to output ratio.
| Source | ||||||
|---|---|---|---|---|---|---|
| GPT-5.6 Sol This model | OpenAI | $4.00 | $20.00 | 922,000 | $8.00 | ↗ |
| Claude Opus 5.5 | Anthropic | $4.00 | $20.00 | 1,000,000 | $8.00 | ↗ |
| GPT-5.6 | OpenAI | $4.00 | $20.00 | 922,000 | $8.00 | ↗ |
| Claude Sonnet 4.5 | Anthropic | $3.00 | $15.00 | 200,000 | $6.00 | ↗ |
| Claude Sonnet 4.6 | Anthropic | $3.00 | $15.00 | 1,000,000 | $6.00 | ↗ |
| Claude Opus 4.5 | Anthropic | $5.00 | $25.00 | 200,000 | $10.00 | ↗ |
| Claude Opus 4.6 | Anthropic | $5.00 | $25.00 | 1,000,000 | $10.00 | ↗ |
| Claude Opus 4.7 | Anthropic | $5.00 | $25.00 | 1,000,000 | $10.00 | ↗ |
| Claude Opus 4.8 | Anthropic | $5.00 | $25.00 | 1,000,000 | $10.00 | ↗ |
Prices last checked: . Methodology
Questions
How much does GPT-5.6 Sol cost per million tokens?
$4.00 per million input tokens and $20.00 per million output tokens, with cached input at $0.400. At a 3:1 input to output mix that blends to $8.00. Checked 28 Oct 2026.
How much cheaper is GPT-5.6 Sol through the Batch API?
gpt-5.6-sol:batch costs $2.00 in and $10.00 out per million tokens, 50% cheaper than standard, in exchange for asynchronous delivery.
What does GPT-5.6 Sol Pro cost?
gpt-5.6-sol-pro costs $4.00 in and $20.00 out per million tokens, the same price as standard.
What would GPT-5.6 Sol cost for a real workload?
A thousand requests a day at 2,000 input and 600 output tokens each comes to $600.00 a month on the standard tier, or $300.00 through batch.
What is the context window for GPT-5.6 Sol?
922,000 tokens of input, with up to 128,000 tokens of output.
Claude Opus 5.5 · GPT-5.6 · Claude Sonnet 4.5 · Claude Sonnet 4.6 · Claude Opus 4.5 · All OpenAI models · Cost calculator