Compare/Pixtral Large vs Grok 4.20 0309 v2 (Reasoning)

Pixtral LargevsGrok 4.20 0309 v2 (Reasoning)

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

Mistral

Pixtral Large

Input
$2/M
Output
$6/M
Speed
56 tok/s
TTFT
0.49s
xAI

Grok 4.20 0309 v2 (Reasoning)

Input
$2/M
Output
$6/M
Speed
91 tok/s
TTFT
30.52s

Winner by Category

Cheaper
Tie
Faster (tok/s)
Grok 4.20 0309 v2 (Reasoning)
Lower Latency
Pixtral Large
Benchmarks (5-7)
Grok 4.20 0309 v2 (Reasoning)

Pricing Comparison

MetricPixtral LargeGrok 4.20 0309 v2 (Reasoning)
Input ($/M tokens)$2$2
Output ($/M tokens)$6$6
Cost for 1M input + 100K output tokens:
Pixtral Large$2.60
Grok 4.20 0309 v2 (Reasoning)$2.60

Speed Comparison

Output Speed (tokens/s) — higher is better
Pixtral Large
56 tok/s
Grok 4.20 0309 v2 (Reasoning)
91 tok/s
Time to First Token (seconds) — lower is better
Pixtral Large
0.49s
Grok 4.20 0309 v2 (Reasoning)
30.52s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
14.049.3
Coding Index
40.5
Math Index
2.3
GPQA Diamond
50.5%91.1%
MMLU-Pro
70.1%
LiveCodeBench
26.1%
AIME 2025
2.3%
MATH-500
71.4%
Humanity's Last Exam
3.6%32.2%
SciCode
29.2%45.6%
IFBench
34.5%81.2%
TerminalBench
37.9%
Pixtral Large5 wins
7 winsGrok 4.20 0309 v2 (Reasoning)

Frequently Asked Questions

Which is cheaper, Pixtral Large or Grok 4.20 0309 v2 (Reasoning)?

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 v2 (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 v2 (Reasoning) generates tokens faster at 91 tok/s vs 56 tok/s. Pixtral Large also has lower time-to-first-token (0.49s vs 30.52s).

When should I use Pixtral Large vs Grok 4.20 0309 v2 (Reasoning)?

Choose based on your priorities: both are similarly priced, 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.