grok-4.6 vs kimi-k3-256k
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 | grok-4.6 | kimi-k3-256k | Advantage |
|---|---|---|---|
| Capability | 60% | 57% | +3% (grok-4.6 leads) |
| Median task time | 6m 19s | 3m 3s | 3m 16s faster (kimi-k3-256k leads) |
| Approx. task cost | $0.013 / task | $0.018 / task | $0.005 / task lower (grok-4.6 leads) |
grok-4.6: 2.8% of SuperGrok (2.8% / 1w) per run. kimi-k3-256k: 99.0% of Kimi Allegretto (99.0% / 5h, 20.0% / 1w) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
| Dimension | grok-4.6 | kimi-k3-256k | Advantage |
|---|---|---|---|
| Capability | 60% | 51% | +8% (grok-4.6 leads) |
| Median task time | 32m 10s | 5m 16s | 26m 54s faster (kimi-k3-256k leads) |
| Approx. task cost | $0.093 / task | $0.034 / task | $0.059 / task lower (kimi-k3-256k leads) |
grok-4.6: 5.4% of SuperGrok (5.4% / 1w) per run. kimi-k3-256k: 51.0% of Kimi Allegretto (51.0% / 5h, 10.0% / 1w) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
| Dimension | grok-4.6 | kimi-k3-256k | Advantage |
|---|---|---|---|
| Capability | 46% | 38% | +8% (grok-4.6 leads) |
| Median task time | 8m 23s | 6m 37s | 1m 45s faster (kimi-k3-256k leads) |
| Approx. task cost | $0.012 / task | $0.027 / task | $0.016 / task lower (grok-4.6 leads) |
grok-4.6: 0.2% of SuperGrok (0.2% / 1w) per good solve. kimi-k3-256k: 10.2% of Kimi Allegretto (10.2% / 5h, 2.0% / 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, grok-4.6 or kimi-k3-256k?
grok-4.6 clears higher: tier 4 of 5 versus tier 2 for kimi-k3-256k on real-world@v3, our private suite of real-world coding problems. Latest measurement 2026-08-16.
How much do grok-4.6 and kimi-k3-256k cost?
grok-4.6 runs on SuperGrok at $30/month (public price as of 2026-07-20). kimi-k3-256k runs on Kimi Allegretto at $39/month (public price as of 2026-07-20).