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.

SpaceXAI

Grok 4.20 0309 (Reasoning)

Input
$2/M
Output
$6/M
Speed
TTFT
Mistral

Pixtral Large

Input
$2/M
Output
$6/M
Speed
44 tok/s
TTFT
0.58s

Winner by Category

Cheaper
Tie
Faster (tok/s)
Pixtral Large
Lower Latency
Grok 4.20 0309 (Reasoning)
Benchmarks (6-5)
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)
Pixtral Large
44 tok/s
Time to First Token (seconds) — lower is better
Grok 4.20 0309 (Reasoning)
Pixtral Large
0.58s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
36.58.1
Coding Index
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)6 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 6 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?

Pixtral Large generates tokens faster at 44 tok/s vs 0 tok/s. Grok 4.20 0309 (Reasoning) also has lower time-to-first-token (0.00s vs 0.58s).

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 Pixtral Large for faster generation. For latency-sensitive apps, check the TTFT comparison above.