GPT-6.1 Sol vs Grok 4.7
Both grade C overall. GPT-6.1 Sol is about 13x cheaper per task. By suite, real-world issues is even at C- and spec planning is even at 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 4.7 vs GPT-6.1 Sol
Both grade C overall. By suite: real-world issues is even at C- (57% vs 58% capability); spec planning is even at C+ (73% vs 73% capability); GPT-6.1 Sol takes vibe coding, C+ to C (72% vs 64% 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 4.7 used 15% of SuperGrok Plus's weekly limit per pass, $0.182 per task at the listed price. Per task, GPT-6.1 Sol is about 13x cheaper ($0.015 vs $0.182). GPT-6.1 Sol is faster on real-world issues: a median task takes 3m 26s against 8m 13s. Both finished every task on it.
Changed since W39: GPT-6.1 Sol has one graded week under this version (W40); Grok 4.7: real-world issues D to C-, spec planning C to C+, spec planning usage 7% to 10% of the weekly limit, vibe coding usage 0.4% to 0.6% of the weekly limit.
| Dimension | GPT-6.1 Sol | Grok 4.7 | Advantage |
|---|---|---|---|
| Capability | 57% | 58% | +2% (Grok 4.7 leads) |
| Median task time | 3m 26s | 8m 13s | 4m 47s faster (GPT-6.1 Sol leads) |
| Approx. task cost | $0.012 / task | $0.077 / task | $0.064 / 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 4.7: 5.0% of SuperGrok Plus (5.0% / 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 4.7 | Advantage |
|---|---|---|---|
| Capability | 73% | 73% | +1% (GPT-6.1 Sol leads) |
| Median task time | 6m 22s | 39m 33s | 33m 11s 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 4.7: 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 4.7 | Advantage |
|---|---|---|---|
| Capability | 72% | 64% | +8% (GPT-6.1 Sol leads) |
| Median task time | 4m 55s | 12m 13s | 7m 18s faster (GPT-6.1 Sol leads) |
| Approx. task cost | $0.018 / task | $0.138 / task | $0.120 / 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 4.7: 0.6% of SuperGrok Plus (0.6% / 1w) 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 4.7?
GPT-6.1 Sol clears higher: tier 2 of 5 versus tier 1 for Grok 4.7 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 4.7?
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 4.7 used 15% of SuperGrok Plus's weekly limit per pass, $0.182 per task at the listed price. Per task, GPT-6.1 Sol is about 13x cheaper ($0.015 vs $0.182).
What do GPT-6.1 Sol and Grok 4.7 cost a month?
GPT-6.1 Sol runs on ChatGPT Plus at $20/month (public price as of 2026-07-20). Grok 4.7 runs on SuperGrok Plus at $100/month (public price as of 2026-09-14).