Compare/Gemini 2.5 Flash Preview (Sep '25) (Non-reasoning) vs Grok-1

Gemini 2.5 Flash Preview (Sep '25) (Non-reasoning)vsGrok-1

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

Google

Gemini 2.5 Flash Preview (Sep '25) (Non-reasoning)

Input
$0/M
Output
$0/M
Speed
TTFT
xAI

Grok-1

Input
$0/M
Output
$0/M
Speed
TTFT

Winner by Category

Cheaper
Tie
Faster (tok/s)
Tie
Lower Latency
Tie
Benchmarks (11-0)
Gemini 2.5 Flash Preview (Sep '25) (Non-reasoning)

Pricing Comparison

MetricGemini 2.5 Flash Preview (Sep '25) (Non-reasoning)Grok-1
Input ($/M tokens)$0$0
Output ($/M tokens)$0$0
Cost for 1M input + 100K output tokens:
Gemini 2.5 Flash Preview (Sep '25) (Non-reasoning)$0.00
Grok-1$0.00

Speed Comparison

Speed data not available for these models.

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
25.711.7
Coding Index
22.1
Math Index
56.7
GPQA Diamond
76.6%
MMLU-Pro
83.6%
LiveCodeBench
62.5%
AIME 2025
56.7%
MATH-500
Humanity's Last Exam
7.8%
SciCode
37.5%
IFBench
43.5%
TerminalBench
14.4%
Gemini 2.5 Flash Preview (Sep '25) (Non-reasoning)11 wins
0 winsGrok-1

Frequently Asked Questions

Which is cheaper, Gemini 2.5 Flash Preview (Sep '25) (Non-reasoning) or Grok-1?

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

Which model performs better on benchmarks?

Gemini 2.5 Flash Preview (Sep '25) (Non-reasoning) wins 11 out of 12 benchmarks compared to 0 for Grok-1. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Both models have comparable generation speeds.

When should I use Gemini 2.5 Flash Preview (Sep '25) (Non-reasoning) vs Grok-1?

Choose based on your priorities: both are similarly priced, Gemini 2.5 Flash Preview (Sep '25) (Non-reasoning) for stronger benchmark performance, and both have comparable speed. For latency-sensitive apps, check the TTFT comparison above.