Compare / Qwen3-32B vs Grok 4 Fast (reasoning)

Qwen3-32B vs Grok 4 Fast (reasoning)

Which is cheaper, which is more capable, and which does better at each kind of work, from 18 results on 4 sources that measured both models.

AlibabaQwen3-32B Released 28 Apr 2025 · $0.14 in · $0.40 out
xAIGrok 4 Fast (reasoning) Released 19 Sep 2025 · Not on sale
Qwen3-32B wins 31 too close to callGrok 4 Fast (reasoning) wins 14

Of the 18 results both models have, the better value on each. Results whose reported ranges overlap are too close to call.

Results as of 9 October 2026 (catalogue release 2026-10-09-dd620e778ac5). See also Alibaba vs xAI, every model from both labs.

Qwen3-32B or Grok 4 Fast (reasoning)? The short answer

Pick Grok 4 Fast (reasoning): it scores higher (Intelligence Index 17.9 against 8.6) at about the same price.

  • Grok 4 Fast (reasoning) scores higher on the Artificial Analysis Intelligence Index: 17.9 against 8.6.
  • Grok 4 Fast (reasoning) is newer: released 19 Sep 2025, against 28 Apr 2025 for Qwen3-32B.
  • On third-party benchmarks, on the results both models have: Qwen3-32B does better for sticking to the facts; Grok 4 Fast (reasoning) for reasoning and knowledge and writing.

Head to head

8.6
Intelligence Index
17.9

Every fact side by side

Qwen3-32BGrok 4 Fast (reasoning)
Price per million tokens$0.14 in · $0.40 outNot on sale
Blended (3 in : 1 out)$0.21–
Cheapest host, blended$0.13 (DeepInfra, FP8)–
Intelligence Index8.617.9
Spring Prompt overall––
Output speed, tokens a second––
Context window131,072 tokens–
Released28 Apr 202519 Sep 2025 (newer)
WeightsOpenClosed
Developer based inChinathe US

Prices are the developer's list price where we have read it, otherwise the typical host on OpenRouter; see every model's price. Intelligence and speed from Artificial Analysis.

Which is better for what

Each model's rank among the models on sale today, for each kind of work, from our own benchmarks and licensed sources. Further right is better; the better rank is in green.

Agents and tool useMulti-step tasks with tools: support desks, coding agents, function calls 113 of 164 not measured
Reasoning and knowledgeHard questions across science, maths and general knowledge 148 of 198 96 of 199
WritingWhat people prefer in blind comparisons, and judged writing quality 139 of 188 88 of 189
Sticking to the factsSummarising without inventing things, and factual answers 22 of 152 133 of 153

Every shared result

Each model's best result on every measure both have, grouped by benchmark, with the setting that produced it. Under each measure, every model that benchmark has measured is a grey tick, best to the right, so you can see where the two sit in the field. The headline measures of each benchmark come first; the rest are under "Show all". Green marks the better value; where a source reports ranges that overlap, neither is marked.

MeasureQwen3-32BGrok 4 Fast (reasoning)
Arena (formerly LMArena) reported by Arena (formerly LMArena) · 3 results
Overall · TextArena rating, higher is better 195 · 132 of 387 measured 1,347 1,405
Business, management and finance · TextArena rating, higher is better 203 · 138 of 380 measured 1,340 1,403
Creative writing · TextArena rating, higher is better 205 · 115 of 385 measured 1,304 1,383
Artificial Analysis reported by Artificial Analysis · 3 results
Artificial Analysis Intelligence Indexindex score, higher is better 188 · 113 of 243 measured 8.6thinking reasoning 17.9
GPQA Diamond% of questions, higher is better 167 · 81 of 231 measured 66.8%thinking reasoning 84.7%
Humanity's Last Exam% of questions, higher is better 168 · 113 of 242 measured 7.4%thinking reasoning 19.1%
UGI Leaderboard reported by UGI Leaderboard · 3 results
Writing score · UGIscore out of 100, higher is better 134 · 69 of 230 measured 33.0no reasoning 53.4
Requested-length error · UGI% off the requested word count, lower is better 99 · 134 of 230 measured 19.0%no reasoning 23.0%
Style adherence · UGIscore from 0 to 1, higher is better 175 · 155 of 230 measured 0.32no reasoning 0.33
Vectara Hallucination Leaderboard reported by Vectara Hallucination Leaderboard · 2 results
Hallucination rate · Vectara% of summaries, lower is better 24 · 99 of 104 measured 5.9% 20.2%
Answer rate · Vectara% of documents, higher is better 17 · 50 of 104 measured 99.9% 99.5%
Show all 18 results (7 more)
MeasureQwen3-32BGrok 4 Fast (reasoning)
Arena (formerly LMArena) reported by Arena (formerly LMArena) · 3 results
Expert prompts · TextArena rating, higher is better 159 · 132 of 338 measured 1,398 1,421
Instruction following · TextArena rating, higher is better 198 · 137 of 387 measured 1,331 1,388
Writing, literature and language · TextArena rating, higher is better 217 · 123 of 386 measured 1,308 1,388
Artificial Analysis reported by Artificial Analysis · 4 results
IFBench% of instructions, higher is better 155 · 104 of 195 measured 36.3%thinking reasoning 50.5%
Long-context reasoning (AA-LCR)% of questions, higher is better 222 · 90 of 233 measured 0.0%no reasoning 73.7%
Terminal-Bench Hard% of tasks, higher is better 169 · 94 of 190 measured 3.0%thinking reasoning 18.9%
τ²-bench telecom% of tasks, higher is better 135 · 86 of 193 measured 29.8%thinking reasoning 65.8%

Quick answers

Is Qwen3-32B better than Grok 4 Fast (reasoning)?

Pick Grok 4 Fast (reasoning): it scores higher (Intelligence Index 17.9 against 8.6) at about the same price.

Which is better for reasoning and knowledge, Qwen3-32B or Grok 4 Fast (reasoning)?

Grok 4 Fast (reasoning) ranks 96 of 198 models on sale for hard questions across science, maths and general knowledge, against 148 for Qwen3-32B.

Which is better for writing, Qwen3-32B or Grok 4 Fast (reasoning)?

Grok 4 Fast (reasoning) ranks 88 of 188 models on sale for what people prefer in blind comparisons, and judged writing quality, against 139 for Qwen3-32B.

Which is better for sticking to the facts, Qwen3-32B or Grok 4 Fast (reasoning)?

Qwen3-32B ranks 22 of 152 models on sale for summarising without inventing things, and factual answers, against 133 for Grok 4 Fast (reasoning).

Run Qwen3-32B and Grok 4 Fast (reasoning) on your own prompt

Benchmarks aren't your data. Try both side by side in the playground, with the cost of every answer.