Compare/Grok 4.20 0309 (Reasoning) vs Pixtral Large

Grok 4.20 0309 (Reasoning)vsPixtral Large

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

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Grok 4.20 0309 (Reasoning)

Input
$2/M
Output
$6/M
Speed
247 tok/s
TTFT
10.92s
Mistral

Pixtral Large

Input
$2/M
Output
$6/M
Speed
54 tok/s
TTFT
0.44s

Winner by Category

Cheaper
Tie
Faster (tok/s)
Grok 4.20 0309 (Reasoning)
Lower Latency
Pixtral Large
Benchmarks (7-5)
Grok 4.20 0309 (Reasoning)

Pricing Comparison

MetricGrok 4.20 0309 (Reasoning)Pixtral Large
Input ($/M tokens)$2$2
Output ($/M tokens)$6$6
Cost for 1M input + 100K output tokens:
Grok 4.20 0309 (Reasoning)$2.60
Pixtral Large$2.60

Speed Comparison

Output Speed (tokens/s) — higher is better
Grok 4.20 0309 (Reasoning)
247 tok/s
Pixtral Large
54 tok/s
Time to First Token (seconds) — lower is better
Grok 4.20 0309 (Reasoning)
10.92s
Pixtral Large
0.44s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
48.514.0
Coding Index
42.2
Math Index
2.3
GPQA Diamond
88.5%50.5%
MMLU-Pro
70.1%
LiveCodeBench
26.1%
AIME 2025
2.3%
MATH-500
71.4%
Humanity's Last Exam
30.0%3.6%
SciCode
44.7%29.2%
IFBench
82.9%34.5%
TerminalBench
40.9%
Grok 4.20 0309 (Reasoning)7 wins
5 winsPixtral Large

Frequently Asked Questions

Which is cheaper, Grok 4.20 0309 (Reasoning) or Pixtral Large?

Both models have similar pricing. Check the detailed breakdown above for input vs output token costs.

Which model performs better on benchmarks?

Grok 4.20 0309 (Reasoning) wins 7 out of 12 benchmarks compared to 5 for Pixtral Large. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Grok 4.20 0309 (Reasoning) generates tokens faster at 247 tok/s vs 54 tok/s. However, Pixtral Large has lower time-to-first-token (0.44s vs 10.92s).

When should I use Grok 4.20 0309 (Reasoning) vs Pixtral Large?

Choose based on your priorities: both are similarly priced, Grok 4.20 0309 (Reasoning) for stronger benchmark performance, and Grok 4.20 0309 (Reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.