Compare / head-to-head
Grok 4.5vsGrok 4.6
Grok 4.6 leads 5 of 5 shared benchmarks. Both list the same combined token price. Both offer a 500K-token context window.
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 5
Grok 4.6 leads
Cheaper per token
Tie
list price, input + output
Larger context
Tie
both 500K tokens
Provider uptime (30d)
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xAI
Grok 4.5
xAI · released 2026-07-08
textvision
Quality
Benchmark matrix
5 shared · 1 only Grok 4.5 · 10 only Grok 4.6| Benchmark | Grok 4.5 | Grok 4.6 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 5 | ||||
| GPQA Diamond | 93.4% ↗epoch | 94% ↗epoch | -0.6 pt | Grok 4.6 |
| FrontierMath Tier 4 v2 (Epoch AI run) | 24.4% ↗epoch | 31.7% ↗epoch | -7.3 pt | Grok 4.6 |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 57.2% ↗epoch | 66% ↗epoch | -8.8 pt | Grok 4.6 |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 97.8% ↗epoch | 99.2% ↗epoch | -1.4 pt | Grok 4.6 |
| SimpleQA Verified | 48.3% ↗epoch | 49.3% ↗epoch | -1 pt | Grok 4.6 |
| Only Grok 4.5 reports · 1 | ||||
| LMArena Elo | 1450.1 ↗ | not reported | — | — |
| Only Grok 4.6 reports · 10 | ||||
| AA-Briefcase | not reported | 1577 ↗ | — | — |
| APEX-Agents | not reported | 57.5% ↗ | — | — |
| APEX-SWE | not reported | 56.4% ↗ | — | — |
| Artificial Analysis Intelligence Index | not reported | 61 ↗ | — | — |
| CursorBench 3.2 | not reported | 69.9% ↗ | — | — |
| DeepSWE v1.1 | not reported | 65.9% ↗ | — | — |
| FrontierCode v1.1 (Extended) | not reported | 61.3% ↗ | — | — |
| GDPVal-AA v2 | not reported | 1753 ↗ | — | — |
| Harvey LAB (Vals) | not reported | 15.8% ↗ | — | — |
| Terminal-Bench 3.0 | not reported | 26% ↗ | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Grok 4.5 minus Grok 4.6 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Grok 4.5 | Grok 4.6 | Edge |
|---|---|---|---|
| Context window | 500K tokens | 500K tokens | Tie |
| Max output | — | — | — |
| Input price / 1M | $2 ↗ | $2 ↗ | Tie |
| Output price / 1M | $6 ↗ | $6 ↗ | Tie |
| Cached input / 1M | $0.3 ↗ | $0.5 ↗ | Grok 4.5 |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $8 | $8 | Tie |
| Modalities | text · vision | text · vision | Tie |
| Released | 2026-07-08 | 2026-08-12 | — |
| Cited benchmark scores | 6 | 15 | — |
Reliability
xAI status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Grok 4.5 vs …
Models sharing the most benchmarksMore matchups
Grok 4.6 vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run Grok 4.5 and Grok 4.6 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.