Compare/Grok 3 vs Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)

Grok 3vsClaude Sonnet 4.6 (Adaptive Reasoning, Max Effort)

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

xAI

Grok 3

Input
$3/M
Output
$15/M
Speed
69 tok/s
TTFT
0.37s
Anthropic

Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)

Input
$3/M
Output
$15/M
Speed
52 tok/s
TTFT
35.12s

Winner by Category

Cheaper
Tie
Faster (tok/s)
Grok 3
Lower Latency
Grok 3
Benchmarks (5-7)
Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)

Pricing Comparison

MetricGrok 3Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)
Input ($/M tokens)$3$3
Output ($/M tokens)$15$15
Cost for 1M input + 100K output tokens:
Grok 3$4.50
Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)$4.50

Speed Comparison

Output Speed (tokens/s) — higher is better
Grok 3
69 tok/s
Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)
52 tok/s
Time to First Token (seconds) — lower is better
Grok 3
0.37s
Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)
35.12s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
25.251.7
Coding Index
19.850.9
Math Index
58.0
GPQA Diamond
69.3%87.5%
MMLU-Pro
79.9%
LiveCodeBench
42.5%
AIME 2025
58.0%
MATH-500
87.0%
Humanity's Last Exam
5.1%30.0%
SciCode
36.8%46.8%
IFBench
46.9%56.6%
TerminalBench
11.4%53.0%
Grok 35 wins
7 winsClaude Sonnet 4.6 (Adaptive Reasoning, Max Effort)

Frequently Asked Questions

Which is cheaper, Grok 3 or Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)?

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

Which model performs better on benchmarks?

Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) wins 7 out of 12 benchmarks compared to 5 for Grok 3. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Grok 3 generates tokens faster at 69 tok/s vs 52 tok/s. Grok 3 also has lower time-to-first-token (0.37s vs 35.12s).

When should I use Grok 3 vs Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)?

Choose based on your priorities: both are similarly priced, Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) for stronger benchmark performance, and Grok 3 for faster generation. For latency-sensitive apps, check the TTFT comparison above.