GPT-5.6 Sol vs GPT-5.6 Sol Pro
Sol against its Pro serving: same model family, more computation per answer.
What the numbers say
- Output pricing is close: 110 vs 110 credits per 1M tokens.
- Both take the same 1.1M-token context window.
- GPT-5.6 Sol Pro is the newer release (July 2026 vs July 2026).
Derived from the live registry Zeplik routes and bills against. Credits: 1 credit = $0.10, raw provider rate with a 1.10x margin.
Side by side
GPT-5.6 Sol
OpenAI
GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
- Provider
- OpenAI
- Context window
- 1.1M tokens
- Input price
- 22.0 credits / 1M tokens ($2.00 raw)
- Output price
- 110 credits / 1M tokens ($10.00 raw)
- Vision (image input)
- Yes
- Tool calling
- Yes
- Extended reasoning
- No
Best for
- Hard problems where answer quality matters more than cost: strategy, analysis, difficult writing
- Very long documents and codebases: a 1.1M-token window fits entire books or repositories in one conversation
- Working with images: screenshots, charts, photos and scanned documents alongside text
- Tool use and agents: reliably calls functions, so it can search, run skills and drive workflows
GPT-5.6 Sol Pro
OpenAI
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
- Provider
- OpenAI
- Context window
- 1.1M tokens
- Input price
- 22.0 credits / 1M tokens ($2.00 raw)
- Output price
- 110 credits / 1M tokens ($10.00 raw)
- Vision (image input)
- Yes
- Tool calling
- Yes
- Extended reasoning
- No
Best for
- Hard problems where answer quality matters more than cost: strategy, analysis, difficult writing
- Very long documents and codebases: a 1.1M-token window fits entire books or repositories in one conversation
- Working with images: screenshots, charts, photos and scanned documents alongside text
- Tool use and agents: reliably calls functions, so it can search, run skills and drive workflows
Try GPT-5.6 Sol on Zeplik
The honest answer to most model debates is to run your own prompt. Of these two, GPT-5.6 Sol is the row Zeplik offers, so start there and switch models mid-conversation whenever you want a second read.
Explore Zeplik
- 465 AI skillsReady-to-run expert methods that run on GPT-5.6 Sol, GPT-5.6 Sol Pro or any other model.
- 997 integrationsConnect Gmail, Slack, GitHub, Notion and hundreds more so the assistant can work in your apps.
- Simple pricingPlus, Pro and Max plans with a monthly credit allowance that works across every model.