GPT-6 Sol vs Grok 4.6
GPT-6 Sol was superseded by GPT-6.1 Sol. Grok 4.6 was superseded by Grok 4.7. The grades below are the last ones measured, so read them as history rather than as this week's board. See the current roster.
Both grade C- overall. GPT-6 Sol is about 9.3x cheaper per task. By suite, GPT-6 Sol takes real-world issues (C- to D) and Grok 4.6 takes spec planning (C to C-). Both agents run the same private suite cut headless through their own tools, each on its own subscription.Measured
Each agent graded on the same private suites, running headless through its own tools. Advantages are oriented so a win is a win, whichever way the metric runs.
Verdict: Grok 4.6 vs GPT-6 Sol
Both grade C- overall. By suite: GPT-6 Sol takes real-world issues, C- to D (55% vs 47% capability); Grok 4.6 takes spec planning, C to C- (66% vs 60% capability); vibe coding is even at C- (61% vs 61% capability). GPT-6 Sol used 7% of ChatGPT Plus's weekly limit per pass, $0.017 per task at the listed price; at the ~$100 tier the board defaults to that is an estimated ~1.4% of ChatGPT Pro 5x's weekly limit (est, about $0.017 per task). Grok 4.6 used 13% of SuperGrok Plus's weekly limit per pass, $0.157 per task at the listed price. Per task, GPT-6 Sol is about 9.3x cheaper ($0.017 vs $0.157). GPT-6 Sol is faster on real-world issues: a median task takes 1m 41s against 7m 10s. Both finished every task on it.
Changed since the previous graded week: GPT-6 Sol: real-world issues D- to C-, real-world issues usage 4% to 5% of the weekly limit, spec planning C to C-, spec planning usage 1% to 2% of the weekly limit, vibe coding D+ to C-; Grok 4.6: real-world issues C- to D, real-world issues usage 4% to 3% of the weekly limit, vibe coding C+ to C-.
| Dimension | GPT-6 Sol | Grok 4.6 | Advantage |
|---|---|---|---|
| Capability | 55% | 47% | +8% (GPT-6 Sol leads) |
| Median task time | 1m 41s | 7m 10s | 5m 29s faster (GPT-6 Sol leads) |
| Approx. task cost | $0.015 / task | $0.046 / task | $0.031 / task lower (GPT-6 Sol leads) |
GPT-6 Sol: 5.0% of ChatGPT Plus (35.0% / 5h, 5.0% / 1w) per run. Its weekly limit holds about 6 of the week's 33.6 5h windows. Grok 4.6: 3.0% of SuperGrok Plus (3.0% / 1w) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
| Dimension | GPT-6 Sol | Grok 4.6 | Advantage |
|---|---|---|---|
| Capability | 60% | 66% | +5% (Grok 4.6 leads) |
| Median task time | 2m 58s | 45m 26s | 42m 28s faster (GPT-6 Sol leads) |
| Approx. task cost | $0.023 / task | $0.575 / task | $0.552 / task lower (GPT-6 Sol leads) |
GPT-6 Sol: 2.0% of ChatGPT Plus (10.0% / 5h, 2.0% / 1w) per run. Its weekly limit holds about 6 of the week's 33.6 5h windows. Grok 4.6: 10.0% of SuperGrok Plus (10.0% / 1w) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
| Dimension | GPT-6 Sol | Grok 4.6 | Advantage |
|---|---|---|---|
| Capability | 61% | 61% | Even |
| Median task time | 2m 44s | 11m 14s | 8m 30s faster (GPT-6 Sol leads) |
| Approx. task cost | $0.018 / task | <$0.230 / task | $0.212 / task lower (GPT-6 Sol leads) |
GPT-6 Sol: 0.4% of ChatGPT Plus (1.8% / 5h, 0.4% / 1w) per good solve. Its weekly limit holds about 6 of the week's 33.6 5h windows. Grok 4.6: under 1% of SuperGrok Plus per good solve. Each figure is a share of that agent's own plan, so there is no delta to draw.
Grades and deltas are comparable only within a suite version. See methodology.
Frequently asked questions
Which is better for coding, GPT-6 Sol or Grok 4.6?
Grok 4.6 clears higher: tier 4 of 5 versus tier 1 for GPT-6 Sol on real-world@v3, our private suite of real-world coding problems. Latest measurement 2026-09-27.
Which is cheaper per task, GPT-6 Sol or Grok 4.6?
GPT-6 Sol used 7% of ChatGPT Plus's weekly limit per pass, $0.017 per task at the listed price; at the ~$100 tier the board defaults to that is an estimated ~1.4% of ChatGPT Pro 5x's weekly limit (est, about $0.017 per task). Grok 4.6 used 13% of SuperGrok Plus's weekly limit per pass, $0.157 per task at the listed price. Per task, GPT-6 Sol is about 9.3x cheaper ($0.017 vs $0.157).
What do GPT-6 Sol and Grok 4.6 cost a month?
GPT-6 Sol runs on ChatGPT Plus at $20/month (public price as of 2026-07-20). Grok 4.6 runs on SuperGrok Plus at $100/month (public price as of 2026-09-14).