Compare / Qwen3-30B-A3B-Instruct-2507 vs Grok 4 Fast (reasoning)
Qwen3-30B-A3B-Instruct-2507 vs Grok 4 Fast (reasoning)
Which is cheaper, which is more capable, and which does better at each kind of work, from 16 results on 3 sources that measured both models.
Of the 16 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.
Qwen3-30B-A3B-Instruct-2507 or Grok 4 Fast (reasoning)? The short answer
Pick Grok 4 Fast (reasoning): it scores higher (Intelligence Index 17.9 against 7.5) at about the same price.
- Grok 4 Fast (reasoning) scores higher on the Artificial Analysis Intelligence Index: 17.9 against 7.5.
- Grok 4 Fast (reasoning) is newer: released 19 Sep 2025, against 29 Jul 2025 for Qwen3-30B-A3B-Instruct-2507.
- On third-party benchmarks, on the results both models have: Grok 4 Fast (reasoning) does better for reasoning and knowledge and writing.
Head to head
Every fact side by side
| Qwen3-30B-A3B-Instruct-2507 | Grok 4 Fast (reasoning) | |
|---|---|---|
| Price per million tokens | $0.090 in · $0.30 out | Not on sale |
| Blended (3 in : 1 out) | $0.14 | – |
| Cheapest host, blended | $0.084 (StreamLake) | – |
| Intelligence Index | 7.5 | 17.9 |
| Spring Prompt overall | – | – |
| Output speed, tokens a second | – | – |
| Context window | 262,144 tokens | – |
| Released | 29 Jul 2025 | 19 Sep 2025 (newer) |
| Weights | Open | Closed |
| Developer based in | China | the 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.
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.
| Measure | Qwen3-30B-A3B-Instruct-2507 | Grok 4 Fast (reasoning) |
|---|---|---|
| Arena (formerly LMArena) reported by Arena (formerly LMArena) · 3 results | ||
| Overall · TextArena rating, higher is better 162 · 132 of 387 measured | 1,383 | 1,405 |
| Business, management and finance · TextArena rating, higher is better 144 · 138 of 380 measured | 1,397 | 1,403 |
| Creative writing · TextArena rating, higher is better 186 · 115 of 385 measured | 1,319 | 1,383 |
| Artificial Analysis reported by Artificial Analysis · 3 results | ||
| Artificial Analysis Intelligence Indexindex score, higher is better 209 · 113 of 243 measured | 7.5 | 17.9 |
| GPQA Diamond% of questions, higher is better 172 · 81 of 231 measured | 65.9% | 84.7% |
| Humanity's Last Exam% of questions, higher is better 173 · 113 of 242 measured | 6.9% | 19.1% |
| UGI Leaderboard reported by UGI Leaderboard · 3 results | ||
| Writing score · UGIscore out of 100, higher is better 163 · 69 of 230 measured | 27.9 | 53.4 |
| Requested-length error · UGI% off the requested word count, lower is better 57 · 134 of 230 measured | 13.0% | 23.0% |
| Style adherence · UGIscore from 0 to 1, higher is better 187 · 155 of 230 measured | 0.31 | 0.33 |
Show all 16 results (7 more)
| Measure | Qwen3-30B-A3B-Instruct-2507 | Grok 4 Fast (reasoning) |
|---|---|---|
| Arena (formerly LMArena) reported by Arena (formerly LMArena) · 3 results | ||
| Expert prompts · TextArena rating, higher is better 163 · 132 of 338 measured | 1,395 | 1,421 |
| Instruction following · TextArena rating, higher is better 164 · 137 of 387 measured | 1,367 | 1,388 |
| Writing, literature and language · TextArena rating, higher is better 176 · 123 of 386 measured | 1,342 | 1,388 |
| Artificial Analysis reported by Artificial Analysis · 4 results | ||
| IFBench% of instructions, higher is better 168 · 104 of 195 measured | 33.1% | 50.5% |
| Long-context reasoning (AA-LCR)% of questions, higher is better 191 · 90 of 233 measured | 26.3% | 73.7% |
| Terminal-Bench Hard% of tasks, higher is better 147 · 94 of 190 measured | 6.1% | 18.9% |
| τ²-bench telecom% of tasks, higher is better 185 · 86 of 193 measured | 10.2% | 65.8% |
Compare them with other models
Quick answers
Is Qwen3-30B-A3B-Instruct-2507 better than Grok 4 Fast (reasoning)?
Pick Grok 4 Fast (reasoning): it scores higher (Intelligence Index 17.9 against 7.5) at about the same price.
Which is better for reasoning and knowledge, Qwen3-30B-A3B-Instruct-2507 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 159 for Qwen3-30B-A3B-Instruct-2507.
Which is better for writing, Qwen3-30B-A3B-Instruct-2507 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 140 for Qwen3-30B-A3B-Instruct-2507.
Run Qwen3-30B-A3B-Instruct-2507 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.