Model comparison
Grok 4 vs Qwen3.5 397B
Head-to-head evidence from 13 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Grok 4 #50 (Supported); Qwen3.5 397B #71 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Grok 4 and Qwen3.5 397B share 13 comparable benchmark results. 1 of 8 categories are comparable. 3 results are unique to Grok 4; 42 to Qwen3.5 397B.
Updated July 22, 2026- Shared results
- 13
- Grok 4 only
- 3
- Qwen3.5 397B only
- 42
- Comparable categories
- 1 / 8
Pick Grok 4 if you want the stronger benchmark profile. Qwen3.5 397B only becomes the better choice if mathematics is the priority.
Confidence note. This is a partial-evidence comparison with 13 shared benchmark results across 6 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Grok 4 is clearly ahead on the BenchAlign aggregate, 60.42 to 57.01. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | Grok 4 | Δ | Qwen3.5 397B |
|---|---|---|---|
| Math | Grok 415.3 | Margin→ 75.3 | Qwen3.5 397B90.6 |
| Agentic | Grok 4Not measured | MarginNo overlap | Qwen3.5 397B56.5 |
| Coding | Grok 4Not measured | MarginNo overlap | Qwen3.5 397B66.5 |
| Reasoning | Grok 4Not measured | MarginNo overlap | Qwen3.5 397B63.2 |
| Knowledge | Grok 4Not measured | MarginNo overlap | Qwen3.5 397B56.6 |
| Multilingual | Grok 4Not measured | MarginNo overlap | Qwen3.5 397B84.7 |
| Multimodal | Grok 4Not measured | MarginNo overlap | Qwen3.5 397B79.6 |
| Inst. Following | Grok 4Not measured | MarginNo overlap | Qwen3.5 397B92.6 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Grok 4 | Qwen3.5 397B | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Grok 4Not available | Qwen3.5 397B$0.6 input / $3.6 output | A complete price comparison is not available. |
| Generation speedtokens per second | Grok 454 tok/s | Qwen3.5 397B96 tok/s | Qwen3.5 397B has the higher measured throughput. |
| First-answer latencyseconds to first token | Grok 415.60 s | Qwen3.5 397B2.44 s | Qwen3.5 397B reaches the first token sooner. |
| Context windowmaximum listed tokens | Grok 4128K | Qwen3.5 397B128K | Listed context windows are equal. |
Benchmark Deep Dive
Agentic18 benchmarks
| Benchmark | Grok 4 | Qwen3.5 397B | Result |
|---|---|---|---|
| τ²-bench resultsSource | 74.9% | 95.6% | Qwen3.5 397B leads |
| Gert LabsSource | 42.34% | 46.76% | Qwen3.5 397B leads |
| Terminal-Bench 2.0Source | — | 52.5% | Not comparable |
| BrowseCompSource | — | 62% | Not comparable |
| Claw-EvalSource | — | 56.8% | Not comparable |
| QwenClawBenchSource | — | 51.8% | Not comparable |
| τ³-bench resultsSource | — | 68.4% | Not comparable |
| VITA-BenchSource | — | 43.7% | Not comparable |
| DeepPlanningSource | — | 37.6% | Not comparable |
| ToolathlonSource | — | 36.3% | Not comparable |
| MCP AtlasSource | — | 46.1% | Not comparable |
| MCP-TasksSource | — | 74.2% | Not comparable |
| WideResearchSource | — | 74.0% | Not comparable |
| ResearchClawBenchSource | — | 14.2% | Not comparable |
| AA Agentic IndexSource | — | 19.9% | Not comparable |
| APEX-Agents-AASource | — | 15.3% | Not comparable |
| GDPval-AASource | — | 23.1% | Not comparable |
| GDPval-AASource | — | 962 | Not comparable |
Coding6 benchmarks
Reasoning4 benchmarks
Knowledge12 benchmarks
| Benchmark | Grok 4 | Qwen3.5 397B | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 33.3% | 33.7% | Qwen3.5 397B leads |
| AA-GPQA DiamondSource | 87.7% | 89.3% | Qwen3.5 397B leads |
| AA-HLESource | 23.9% | 27.3% | Qwen3.5 397B leads |
| AA-Omniscience IndexSource | 3.8% | -29.8% | Grok 4 leads |
| AA-Omniscience AccuracySource | 41.4% | 31.4% | Grok 4 leads |
| AA-Omniscience Hallucination RateSource | 64.2% | 89.1% | Grok 4 leads |
| GPQASource | — | 88.4% | Not comparable |
| SuperGPQASource | — | 70.4% | Not comparable |
| MMLU-ProSource | — | 87.8% | Not comparable |
| MMLU-ReduxSource | — | 94.9% | Not comparable |
| C-EvalSource | — | 93% | Not comparable |
| HLESource | — | 28.7% | Not comparable |
MathQwen3.5 397B wins7 benchmarks
| Benchmark | Grok 4 | Qwen3.5 397B | Result |
|---|---|---|---|
| FrontierMath v2 (Tiers 1-3)Source | 19.655% | — | Not comparable |
| FrontierMath v2 (Tier 4)Source | 2.083% | — | Not comparable |
| AIME26Source | — | 93.3% | Not comparable |
| HMMT Feb 2025Source | — | 94.8% | Not comparable |
| HMMT Nov 2025Source | — | 92.7% | Not comparable |
| HMMT Feb 2026Source | — | 87.9% | Not comparable |
| MMAnswerBenchSource | — | 80.9% | Not comparable |
Multilingual2 benchmarks
Multimodal7 benchmarks
Frequently Asked Questions (2)
Which is better, Grok 4 or Qwen3.5 397B?
Grok 4 is ahead on BenchLM's BenchAlign leaderboard, 60.42 to 57.01.
Which is better for math, Grok 4 or Qwen3.5 397B?
Qwen3.5 397B has the edge for math in this comparison, averaging 90.6 versus 15.3. Grok 4 stays close enough that the answer can still flip depending on your workload.
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