GPT-6.1 Sol vs Grok 4.6
Grok 4.6 was superseded by Grok 4.7.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.
GPT-6.1 Sol leads overall, C to C-. GPT-6.1 Sol is about 11x cheaper per task. By suite, GPT-6.1 Sol takes real-world issues (C- to D) and spec planning (C+ to C). The data gives no reason to pick Grok 4.6 over GPT-6.1 Sol this week.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-6.1 Sol
GPT-6.1 Sol leads overall, C to C-. By suite: GPT-6.1 Sol takes real-world issues, C- to D (57% vs 47% capability); GPT-6.1 Sol takes spec planning, C+ to C (73% vs 66% capability); GPT-6.1 Sol takes vibe coding, C+ to C- (72% vs 61% capability). GPT-6.1 Sol used 6% of ChatGPT Plus's weekly limit per pass, $0.015 per task at the listed price; at the ~$100 tier the board defaults to that is an estimated ~1.2% of ChatGPT Pro 5x's weekly limit (est, about $0.015 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-6.1 Sol is about 11x cheaper ($0.015 vs $0.157). GPT-6.1 Sol is faster on real-world issues: a median task takes 3m 26s against 7m 10s. Both finished every task on it. The data gives no reason to pick Grok 4.6 over GPT-6.1 Sol this week.
Changed since W38: GPT-6.1 Sol has one graded week under this version (W40); 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-6.1 Sol | Grok 4.6 | Advantage |
|---|---|---|---|
| Capability | 57% | 47% | +10% (GPT-6.1 Sol leads) |
| Median task time | 3m 26s | 7m 10s | 3m 44s faster (GPT-6.1 Sol leads) |
| Approx. task cost | $0.012 / task | $0.046 / task | $0.034 / task lower (GPT-6.1 Sol leads) |
GPT-6.1 Sol: 4.0% of ChatGPT Plus (28.0% / 5h, 4.0% / 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-6.1 Sol | Grok 4.6 | Advantage |
|---|---|---|---|
| Capability | 73% | 66% | +8% (GPT-6.1 Sol leads) |
| Median task time | 6m 22s | 45m 26s | 39m 4s faster (GPT-6.1 Sol leads) |
| Approx. task cost | $0.023 / task | $0.575 / task | $0.552 / task lower (GPT-6.1 Sol leads) |
GPT-6.1 Sol: 2.0% of ChatGPT Plus (9.0% / 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-6.1 Sol | Grok 4.6 | Advantage |
|---|---|---|---|
| Capability | 72% | 61% | +10% (GPT-6.1 Sol leads) |
| Median task time | 4m 55s | 11m 14s | 6m 19s faster (GPT-6.1 Sol leads) |
| Approx. task cost | $0.018 / task | <$0.230 / task | $0.212 / task lower (GPT-6.1 Sol leads) |
GPT-6.1 Sol: 0.4% of ChatGPT Plus (2.2% / 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-6.1 Sol or Grok 4.6?
Grok 4.6 clears higher: tier 4 of 5 versus tier 2 for GPT-6.1 Sol on real-world@v3, our private suite of real-world coding problems. Latest measurement 2026-09-30.
Which is cheaper per task, GPT-6.1 Sol or Grok 4.6?
GPT-6.1 Sol used 6% of ChatGPT Plus's weekly limit per pass, $0.015 per task at the listed price; at the ~$100 tier the board defaults to that is an estimated ~1.2% of ChatGPT Pro 5x's weekly limit (est, about $0.015 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-6.1 Sol is about 11x cheaper ($0.015 vs $0.157).
What do GPT-6.1 Sol and Grok 4.6 cost a month?
GPT-6.1 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).