Updated

OpenAI
GPT-6 Sol Pro
GPT-6 Sol in OpenAI's pro reasoning mode, built for the hardest requests you can give it.
What is GPT-6 Sol Pro?
OpenAI's pro reasoning mode is meant for difficult tasks that need more model work and can tolerate higher latency and token usage, and GPT-6 Sol Pro applies it to GPT-6 Sol.
The underlying model is the same, but each request gets more work, so answers take longer and use more tokens than on standard Sol. OpenAI hasn't published pro-mode results for GPT-6 Sol. Unlike GPT-6.1 Sol Pro, it can still run with reasoning off.
- Provider
- OpenAI
- Context window
- 1.05M tokens
- Input
- Text, Image
- Reasoning
- Off to max
- Max output
- 128K tokens
- Knowledge cutoff
- Apr 20, 2026
How GPT-6 Sol Pro performs
On LMArena
People compare two anonymous answers and vote for the better one. Ranked here against the other chat models you can pick in Super Agent.
LMArena has no separate entry for GPT-6 Sol Pro. It runs the same model as GPT-6 Sol in a deeper reasoning mode, and that page shows the base model's arena results.
Source: LMArena, leaderboard published . Scores move as new votes come in.
What you can do with GPT-6 Sol Pro
GPT-6 Sol with OpenAI's pro reasoning mode
More model work at every effort level than standard Sol
Effort runs from off to max
Same 1.05M-token context and image input as GPT-6 Sol
How to prompt GPT-6 Sol Pro
- Bundle all context and constraints into one message to avoid slow back-and-forth.
- Ask for one specific deliverable per request.
- Keep everyday chat on GPT-6 Sol and bring hard cases here.
Where GPT-6 Sol Pro fits best
Hard planning problems
High-stakes copy that has to be right
Finding the flaw in a complex brief
Questions standard Sol could not crack
How GPT-6 Sol Pro compares
| Model | LMArena text | LMArena coding | Context window | Reasoning |
|---|---|---|---|---|
| GPT-6 Sol Pro | No | No | 1.05M tokens | Off to max |
| GPT-6.1 Sol | 1480#27 | 1537#14 | 1.05M tokens | Low to max |
| GPT-6.1 Sol Pro | No | No | 1.05M tokens | Low to max |
| Claude Sonnet 5.5 | 1478#29 | 1528#26 | 1M tokens | Low to max |
| GPT-6 Luna | 1442#91 | 1507#65 | 1.05M tokens | Off to max |
Good to know before you start
- Expect longer waits than on standard GPT-6 Sol
- Each request uses more tokens than on standard Sol
- GPT-6.1 Sol Pro is the newer pro option on the Sol tier
Start chatting with GPT-6 Sol Pro
Chat with GPT-6 Sol Pro in Super AgentSelect GPT-6 Sol Pro
Open Super Agent on Flashloop and choose GPT-6 Sol Pro in the model picker.
Enter your prompt
Ask for what you need: an answer, a plan, or the images and videos you want the agent to make.
Send and keep going
Send the message. GPT-6 Sol Pro answers in Super Agent and runs any generations you asked for.
Questions about GPT-6 Sol Pro
What makes GPT-6 Sol Pro different from GPT-6 Sol?
Only the reasoning mode. GPT-6 Sol Pro is the same model with OpenAI's pro mode, so it does more work on every request.
Is GPT-6 Sol Pro slower?
Yes. OpenAI says pro mode trades higher latency and token usage for more model work on each request.
GPT-6 Sol Pro or GPT-6.1 Sol Pro?
GPT-6.1 Sol Pro is built on OpenAI's newer GPT-6.1 Sol, which makes fewer factual errors. GPT-6 Sol Pro can also run with reasoning off in Super Agent, while GPT-6.1 Sol Pro always thinks.
What reasoning effort does Super Agent use for GPT-6 Sol Pro?
It starts at low, and you can choose anything from off to max.
More chat models on Flashloop
GPT-6.1 SolOpenAI's GPT-6 Sol upgrade, close to GPT-6 Astra on agentic coding and computer use for far less.
GPT-6.1 Sol ProGPT-6.1 Sol in OpenAI's pro reasoning mode, for hard problems where accuracy beats speed.
Claude Sonnet 5.5Anthropic's upgrade to Sonnet 5 for everyday building, bug fixing and polished documents.
GPT-6 LunaOpenAI's most efficient GPT-6 model for focused, high-volume work, and Super Agent's default.