Compare/Claude 3.7 Sonnet (Reasoning) vs Grok 4

Claude 3.7 Sonnet (Reasoning)vsGrok 4

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

Anthropic

Claude 3.7 Sonnet (Reasoning)

Input
$3/M
Output
$15/M
Speed
TTFT
xAI

Grok 4

Input
$3/M
Output
$15/M
Speed
47 tok/s
TTFT
8.38s

Winner by Category

Cheaper
Tie
Faster (tok/s)
Grok 4
Lower Latency
Claude 3.7 Sonnet (Reasoning)
Benchmarks (0-12)
Grok 4

Pricing Comparison

MetricClaude 3.7 Sonnet (Reasoning)Grok 4
Input ($/M tokens)$3$3
Output ($/M tokens)$15$15
Cost for 1M input + 100K output tokens:
Claude 3.7 Sonnet (Reasoning)$4.50
Grok 4$4.50

Speed Comparison

Output Speed (tokens/s) — higher is better
Claude 3.7 Sonnet (Reasoning)
Grok 4
47 tok/s
Time to First Token (seconds) — lower is better
Claude 3.7 Sonnet (Reasoning)
Grok 4
8.38s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
34.741.5
Coding Index
27.640.5
Math Index
56.392.7
GPQA Diamond
77.2%87.7%
MMLU-Pro
83.7%86.6%
LiveCodeBench
47.3%81.9%
AIME 2025
56.3%92.7%
MATH-500
94.7%99.0%
Humanity's Last Exam
10.3%23.9%
SciCode
40.3%45.7%
IFBench
48.3%53.7%
TerminalBench
21.2%37.9%
Claude 3.7 Sonnet (Reasoning)0 wins
12 winsGrok 4

Frequently Asked Questions

Which is cheaper, Claude 3.7 Sonnet (Reasoning) or Grok 4?

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

Which model performs better on benchmarks?

Grok 4 wins 12 out of 12 benchmarks compared to 0 for Claude 3.7 Sonnet (Reasoning). See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Grok 4 generates tokens faster at 47 tok/s vs 0 tok/s. Claude 3.7 Sonnet (Reasoning) also has lower time-to-first-token (0.00s vs 8.38s).

When should I use Claude 3.7 Sonnet (Reasoning) vs Grok 4?

Choose based on your priorities: both are similarly priced, Grok 4 for stronger benchmark performance, and Grok 4 for faster generation. For latency-sensitive apps, check the TTFT comparison above.