Compare/Qwen3 Max Thinking (Preview) vs Grok 4.20 0309 v2 (Reasoning)

Qwen3 Max Thinking (Preview)vsGrok 4.20 0309 v2 (Reasoning)

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

Alibaba

Qwen3 Max Thinking (Preview)

Input
$1.2/M
Output
$6/M
Speed
58 tok/s
TTFT
1.84s
SpaceXAI

Grok 4.20 0309 v2 (Reasoning)

Input
$2/M
Output
$6/M
Speed
164 tok/s
TTFT
18.00s

Winner by Category

Cheaper
Qwen3 Max Thinking (Preview)
Faster (tok/s)
Grok 4.20 0309 v2 (Reasoning)
Lower Latency
Qwen3 Max Thinking (Preview)
Benchmarks (4-6)
Grok 4.20 0309 v2 (Reasoning)

Pricing Comparison

MetricQwen3 Max Thinking (Preview)Grok 4.20 0309 v2 (Reasoning)
Input ($/M tokens)$1.2$2
Output ($/M tokens)$6$6
Cost for 1M input + 100K output tokens:
Qwen3 Max Thinking (Preview)$1.80
Grok 4.20 0309 v2 (Reasoning)$2.60

Speed Comparison

Output Speed (tokens/s) — higher is better
Qwen3 Max Thinking (Preview)
58 tok/s
Grok 4.20 0309 v2 (Reasoning)
164 tok/s
Time to First Token (seconds) — lower is better
Qwen3 Max Thinking (Preview)
1.84s
Grok 4.20 0309 v2 (Reasoning)
18.00s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
25.037.0
Coding Index
Math Index
82.3
GPQA Diamond
77.6%91.1%
MMLU-Pro
82.4%
LiveCodeBench
53.5%
AIME 2025
82.3%
MATH-500
Humanity's Last Exam
12.0%32.2%
SciCode
38.7%45.6%
IFBench
53.8%81.2%
TerminalBench
17.4%37.9%
Qwen3 Max Thinking (Preview)4 wins
6 winsGrok 4.20 0309 v2 (Reasoning)

Frequently Asked Questions

Which is cheaper, Qwen3 Max Thinking (Preview) or Grok 4.20 0309 v2 (Reasoning)?

Qwen3 Max Thinking (Preview) is cheaper overall. Its blended price (3:1 input/output ratio) is $2.40/M tokens vs $3.00/M for Grok 4.20 0309 v2 (Reasoning).

Which model performs better on benchmarks?

Grok 4.20 0309 v2 (Reasoning) wins 6 out of 12 benchmarks compared to 4 for Qwen3 Max Thinking (Preview). See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Grok 4.20 0309 v2 (Reasoning) generates tokens faster at 164 tok/s vs 58 tok/s. Qwen3 Max Thinking (Preview) also has lower time-to-first-token (1.84s vs 18.00s).

When should I use Qwen3 Max Thinking (Preview) vs Grok 4.20 0309 v2 (Reasoning)?

Choose based on your priorities: Qwen3 Max Thinking (Preview) for lower cost, Grok 4.20 0309 v2 (Reasoning) for stronger benchmark performance, and Grok 4.20 0309 v2 (Reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.