MODEL PROOF
GPT-5.6 Sol Pro (batch)
NOT INDEPENDENTLY RATED
No independent LMArena score is published for this model.
- Independent LMArena score
- Not independently rated
- Context window
- 1.05M
- Maximum output
- 128K
- Input modalities
- file, image, text
- Output modalities
- text
- Published input price
- $1.00 / 1M tokens
- Published output price
- $5.00 / 1M tokens
- Pricing kind
- fixed
- Context tiers
- Tiered by context
MODEL MONUMENT
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OpenAI: GPT-5.6 Sol Pro (batch). Balanced workload. Not independently rated. Evidence as of 28 Aug 2026.
Every price dimension
| Input | $1.00/M |
|---|---|
| Output | $5.00/M |
| Cached input | $0.100/M |
| Cache write | $1.25/M |
| Web search | $0.01/call |
Past 272,000 tokens the price changes. Input goes to $2.00/M (2×) and output to $7.50/M. The headline rate does not apply to a long-context workload.
Independent scores
No independent benchmark has measured this model. Unrated is not a score of zero.
Capability
| Context window | 1.1M |
|---|---|
| Max output | 128K |
| Input modes | file, image, text |
| Tool use | yes |
| Reasoning | optional |
| Knowledge cutoff | 2026-02-16 |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-08-28 |
| Quality data | unrated |
GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode
Questions this page answers
What beats GPT-5.6 Sol Pro (batch)?
GPT-5.6 Sol Pro (batch) has no independent quality score. Unrated is not a score of zero.
Does GPT-5.6 Sol Pro (batch) have an independent quality score?
GPT-5.6 Sol Pro (batch) has no independent quality score in this catalogue. Unrated is not a score of zero.
What does GPT-5.6 Sol Pro (batch) cost?
$1.00/M in, $5.00/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription.
Does this page use Artificial Analysis scores for GPT-5.6 Sol Pro (batch)?
No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated.