gpt-5.6-sol vs grok-4.6
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.
| Dimension | gpt-5.6-sol | grok-4.6 | Advantage |
|---|---|---|---|
| Capability | 60% | 60% | Even |
| Median task time | 2m 28s | 6m 19s | 3m 50s faster (gpt-5.6-sol leads) |
| Approx. task cost | $0.011 / task | $0.013 / task | $0.002 / task lower (gpt-5.6-sol leads) |
gpt-5.6-sol: 3.5% of ChatGPT Plus (3.5% / 1w) per run. grok-4.6: 2.8% of SuperGrok (2.8% / 1w) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
| Dimension | gpt-5.6-sol | grok-4.6 | Advantage |
|---|---|---|---|
| Capability | 67% | 60% | +7% (gpt-5.6-sol leads) |
| Median task time | 4m 11s | 32m 10s | 27m 59s faster (gpt-5.6-sol leads) |
| Approx. task cost | $0.010 / task | $0.093 / task | $0.083 / task lower (gpt-5.6-sol leads) |
gpt-5.6-sol: 0.9% of ChatGPT Plus (0.9% / 1w) per run. grok-4.6: 5.4% of SuperGrok (5.4% / 1w) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
| Dimension | gpt-5.6-sol | grok-4.6 | Advantage |
|---|---|---|---|
| Capability | 56% | 46% | +10% (gpt-5.6-sol leads) |
| Median task time | 3m 43s | 8m 23s | 4m 39s faster (gpt-5.6-sol leads) |
| Approx. task cost | $0.011 / task | $0.012 / task | $0.000 / task lower (gpt-5.6-sol leads) |
gpt-5.6-sol: 0.2% of ChatGPT Plus (0.2% / 1w) per good solve. grok-4.6: 0.2% of SuperGrok (0.2% / 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-5.6-sol or grok-4.6?
They are even on our ladder: both clear tier 4 of 5 at 60% capability on real-world@v3, our private suite of real-world coding problems. Latest measurement 2026-08-17.
How much do gpt-5.6-sol and grok-4.6 cost?
gpt-5.6-sol runs on ChatGPT Plus at $20/month (public price as of 2026-07-20). grok-4.6 runs on SuperGrok at $30/month (public price as of 2026-07-20).