Grok 4.5 vs Hy3 Preview
Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
Grok 4.5 leads for most workloads.
Based on BenchLM composite scores, July 2026.
Grok 4.5
75
Hy3 Preview
55
Pick Grok 4.5 if you want the stronger benchmark profile. Hy3 Preview only becomes the better choice if you want the cheaper token bill.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | Grok 4.5 | Δ | Hy3 Preview |
|---|---|---|---|
| Agentic | 83.3 | ← 28.9 | 54.4 |
| Coding | 64.7 | ← 3.1 | 61.6 |
| Knowledge | — | — | 33.8 |
| Inst. Following | — | — | 63.1 |
Operational Comparison
Grok 4.5
Hy3 Preview
$2 / $6
$0 / $0
N/A
N/A
N/A
N/A
500K
256K
Quick Verdict
Pick Grok 4.5 if you want the stronger benchmark profile. Hy3 Preview only becomes the better choice if you want the cheaper token bill.
Grok 4.5 is clearly ahead on the provisional aggregate, 75 to 55. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Grok 4.5's sharpest advantage is in agentic, where it averages 83.3 against 54.4. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 83.3% to 54.4%.
Grok 4.5 is also the more expensive model on tokens at $2.00 input / $6.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Hy3 Preview. That is roughly Infinityx on output cost alone. Grok 4.5 gives you the larger context window at 500K, compared with 256K for Hy3 Preview.
Benchmark Deep Dive
Frequently Asked Questions (3)
Which is better, Grok 4.5 or Hy3 Preview?
Grok 4.5 is ahead on BenchLM's provisional leaderboard, 75 to 55. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 83.3% and 54.4%.
Which is better for coding, Grok 4.5 or Hy3 Preview?
Grok 4.5 has the edge for coding in this comparison, averaging 64.7 versus 61.6. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, Grok 4.5 or Hy3 Preview?
Grok 4.5 has the edge for agentic tasks in this comparison, averaging 83.3 versus 54.4. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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