GPT-5.4 vs Grok 4.5
Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
GPT-5.4 leads for most workloads.
Based on BenchLM composite scores, July 2026.
GPT-5.4
86
Grok 4.5
75
Verified leaderboard positions: GPT-5.4 #10 · Grok 4.5 unranked
Pick GPT-5.4 if you want the stronger benchmark profile. Grok 4.5 only becomes the better choice if coding is the priority or you want the cheaper token bill.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | GPT-5.4 | Δ | Grok 4.5 |
|---|---|---|---|
| Coding | 57.7 | → 7.0 | 64.7 |
| Agentic | 77.2 | → 6.1 | 83.3 |
| Knowledge | 57.6 | — | — |
| Multimodal | 73.2 | — | — |
Operational Comparison
GPT-5.4
Grok 4.5
$2.5 / $15
$2 / $6
74 t/s
N/A
151.79s
N/A
1.05M
500K
Quick Verdict
Pick GPT-5.4 if you want the stronger benchmark profile. Grok 4.5 only becomes the better choice if coding is the priority or you want the cheaper token bill.
GPT-5.4 is clearly ahead on the provisional aggregate, 86 to 75. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
GPT-5.4 is also the more expensive model on tokens at $2.50 input / $15.00 output per 1M tokens, versus $2.00 input / $6.00 output per 1M tokens for Grok 4.5. That is roughly 2.5x on output cost alone. GPT-5.4 gives you the larger context window at 1.05M, compared with 500K for Grok 4.5.
Benchmark Deep Dive
Frequently Asked Questions (3)
Which is better, GPT-5.4 or Grok 4.5?
GPT-5.4 is ahead on BenchLM's provisional leaderboard, 86 to 75. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 75.1% and 83.3%.
Which is better for coding, GPT-5.4 or Grok 4.5?
Grok 4.5 has the edge for coding in this comparison, averaging 64.7 versus 57.7. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, GPT-5.4 or Grok 4.5?
Grok 4.5 has the edge for agentic tasks in this comparison, averaging 83.3 versus 77.2. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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