EarlyTerms

Sol Pro

Emergent · Emerged · 25 days old · Last reviewed

GPT-5.6 Sol Pro is the maximum reasoning-effort mode of OpenAI's flagship GPT-5.6 Sol model, reserved for ChatGPT Pro and Enterprise subscribers who need the deepest, slowest analysis on unusually difficult or long-running tasks, distinct from Sol's cheaper Medium, High, and Extra High settings.

Its name leaked by accident in an OpenAI genomics benchmark table on June 30, 2026, then OpenAI confirmed Sol Pro as ChatGPT's top reasoning tier at general availability on July 9, 2026. Days later, Wharton statistician Edgar Dobriban used it to disprove a 20-year statistical conjecture in 90 minutes, work GPT-5.5 had failed at after 20+ hours.

Like paying extra for a specialist's full afternoon instead of the general practitioner's ten-minute slot — same doctor, more time devoted to your hardest case.

EarlyTerms Pro

See nascent terms 7 days before everyone, unlock every stage filter, and get weekly early alerts.

Search Interest

peak ~12K/mo
updated 2026-07-17
~12K/mo ~6.2K/mo 0
2026-06-18 2026-07-03 2026-07-17
Term Lifecycle
  1. Nascent
    0–7 days
  2. Emergent ← now
    8–30 days
  3. Validating
    31–90 days
  4. Rising
    91–180 days
  5. Established
    180 days +

Why is it emerging now?

TL;DR

GPT-5.6 Sol Pro's name leaked in an OpenAI benchmark table on June 30, 2026, weeks before OpenAI confirmed it as ChatGPT's top reasoning tier at general availability on July 9. Within days, Wharton's Edgar Dobriban used it to disprove a 20-year statistical conjecture in 90 minutes, and a Berkeley professor formally verified a 1996 optimization bound.

5 forces driving coverage — scroll →
Tech Times
ChatGPT Pro Splitting Into Three: GPT-5.6 Benchmark Reveals Luna, Terra, Sol Pro
Sol Pro surfaced in a leaked genomics benchmark table, scoring 31.5% on 129 problems — the first Pro-tier reveal for a single model generation.
Jul 2, 2026
OpenAI Help Center
GPT-5.6 in ChatGPT
"GPT-5.6 Sol Pro is the highest-capability GPT-5.6 option for difficult tasks and longer-running workflows" — restricted to Pro, Business, and Enterprise plans.
Jul 9, 2026
The Decoder
GPT-5.6 Sol reportedly disproves a 30-year-old statistics conjecture in 90 minutes
Wharton's Edgar Dobriban: GPT-5.5 failed after 20+ hours; Sol Pro found the counterexample in 90 minutes — "exciting times to live in."
Jul 15, 2026
Y Hacker News
GPT-5.6 Sol Pro solves open problem in convex optimization
Jul 16, 2026 25 points · 2 comments
Phillip Kerger (UC Berkeley)
An AI-Assisted Breakthrough in Convex Optimization
Sol Pro closed a 1996 zeroth-order convex-optimization gap in 2.5 hours; the proof was independently verified in Lean.
Jul 2026

Outlook

6-month signal projection and commercial timeline.

Signal medium
Revenue moderate

Rides GPT-5.6 Sol's mainstream GA and viral proof stories, but is a paid reasoning-effort toggle rather than a standalone product people search for independently.

Risk · OpenAI's own docs frame Pro as an effort setting, not a distinct model — searchers may default to generic "GPT-5.6" queries instead.

Analogs · o1 Pro Mode · GPT-5 Pro · Claude Opus 4.7 Extended Thinking

Monetization timeline
  1. now
    Bundled inside the $200 Pro plan

    No separate Sol Pro sticker price yet; API access bills at Sol's standard $5/$30 rate.

  2. 3-6mo
    Research-proof case studies compound

    More disproofs and verified proofs will drive explainer and comparison-article search traffic.

  3. 6-12mo
    Reasoning-effort tiers standardize

    Rivals will likely ship comparable "Pro" effort tiers, commoditizing the naming pattern.

Competition & Opportunity for term “Sol Pro”

Signals derived from the tracked queries, the term's monetization cards, and its cluster neighbors. Heuristic except where marked measured (Google KD).

Content Gap
12 queries tracked
Led by Cost breakdown (7), General (5)
10 Suggest-only tails — long-tail opening
Revenue Potential
58% commercial-intent queries
2 monetization angles mapped
Strong buyer signal — "pricing", "vs", "best" dominate
Build Difficulty
Medium (heuristic)
Stage: emergent — early enough to land
9 / 10 default TLDs taken · oldest incumbent solpro.com (2002-12-14)
8 related terms already published
Heuristic · signals: tracked queries, term monetization cards, cluster neighbors

Ideas for term “Sol Pro”

Buildable pitches — turn this term into an article, site, product, post, newsletter, video, or course. Steal any card and run with it.

Article
GPT-5.6 Sol vs Sol Pro vs Sol Ultra: Which Reasoning Mode Should You Actually Pay For?

Comparison traffic is wide open — OpenAI's own docs don't clearly separate the three tiers, and "vs" is a proven long-tail query pattern.

Article
How to Access GPT-5.6 Sol Pro (and What It Really Costs vs Standard Sol)

Access rules are buried in a help-center article; a clear walkthrough of plan tiers and API equivalents ranks for a confused-user query.

Product
A reasoning-budget calculator that recommends Sol, Sol Pro, or Sol Ultra based on task complexity and token cost

Solves a real decision problem OpenAI leaves to the user; monetizable as a lightweight SaaS or Chrome extension for heavy ChatGPT Pro users.

Post
I Gave GPT-5.6 Sol Pro Every Unsolved Problem I Could Find

First-person experiment format riding the Dobriban and Kerger proof stories; strong shareability with a concrete personal test log.

Video
Sol Pro vs Sol Ultra: Solving a 30-Year-Old Math Problem Live

Visual, replicable demo format — walks through the same convex-optimization proof on camera for a technical YouTube audience.

Post Newsletter / LinkedIn
The $200 Subscription That Quietly Split Into Three Different AI Models

OpenAI never announced Sol Pro — a leaked genomics benchmark table did, two days after the company promised just one flagship model.

Post HN / r/MachineLearning
AI Just Disproved a Method Cited 130,000 Times — Should Anyone Be Worried?

A Wharton statistician needed 90 minutes with GPT-5.6 Sol Pro to break an assumption underlying two decades of published science.

What People Search

Long-tail queries from Google Suggest + Trends. Volume and competition are heuristics — directional, not audited. Content Type comes from query shape.

Keyword
Competition
Content Type
sol progress vessel
Very Low
General
sol progress
Very Low
General
sol price
Low
Cost breakdown
sol price usd
Low
Cost breakdown
sol price now
Low
Cost breakdown
sol price prediction
Low
Cost breakdown
sol price sgd
Low
Cost breakdown
sol price now usd
Low
Cost breakdown
1–8 of 12
1 / 2
Updated 2026-07-17 · sources: Google Trends, Google Suggest · Competition is heuristic

SERP of term “Sol Pro”

What searchers see today — organic results on top, paid ads if anyone's bidding. Ad density is a real-time commercial signal.

FAQ

What is Sol Pro?

GPT-5.6 Sol Pro is the maximum reasoning-effort mode of OpenAI's flagship GPT-5.6 Sol model, reserved for ChatGPT Pro and Enterprise subscribers who need the deepest, slowest analysis on unusually difficult or long-running tasks, distinct….

Why is Sol Pro emerging now?

GPT-5.6 Sol Pro's name leaked in an OpenAI benchmark table on June 30, 2026, weeks before OpenAI confirmed it as ChatGPT's top reasoning tier at general availability on July 9. Within days, Wharton's Edgar Dobriban used it to disprove a 20-year statistical conjecture in 90 minutes, and a Berkeley professor formally verified a 1996 optimization bound.

When did Sol Pro emerge?

Publicly emerged around 2026-06-30 (about 25 days ago as of 2026-07-25). EarlyTerms first recorded a pipeline signal on 2026-07-17.

Related Terms

Other terms in the same space — aliases, subtypes, competitors, and neighbors to explore next.

Explore next
Also mentioned
  • Related o1 Pro Mode

Sources

Primary URLs this report cites — open any to verify the claim yourself.

  1. 01 OpenAI Help Center — GPT-5.6 in ChatGPT (Sol Pro reasoning tier) help.openai.com ↗
  2. 02 Tech Times — ChatGPT Pro Splitting Into Three: GPT-5.6 Benchmark Reveals Luna, Terra, Sol Pro techtimes.com ↗
  3. 03 The Decoder — GPT-5.6 Sol Pro Disproves 30-Year-Old Statistics Conjecture the-decoder.com ↗
  4. 04 Phillip Kerger — An AI-Assisted Breakthrough in Convex Optimization medium.com ↗
  5. 05 Hacker News — GPT-5.6 Sol Pro Solves Open Problem in Convex Optimization news.ycombinator.com ↗
  6. 06 OpenRouter — GPT-5.6 Sol Pro API Pricing & Providers openrouter.ai ↗
  7. 07 ToolColumn — GPT-5.6 Sol Pro vs Max: What Actually Changes? toolcolumn.com ↗