Compare/Grok 4 Fast (Non-reasoning) vs Ling-flash-2.0

Grok 4 Fast (Non-reasoning)vsLing-flash-2.0

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

xAI

Grok 4 Fast (Non-reasoning)

Input
$0.2/M
Output
$0.5/M
Speed
123 tok/s
TTFT
0.30s
InclusionAI

Ling-flash-2.0

Input
$0.14/M
Output
$0.57/M
Speed
64 tok/s
TTFT
1.43s

Winner by Category

Cheaper
Ling-flash-2.0
Faster (tok/s)
Grok 4 Fast (Non-reasoning)
Lower Latency
Grok 4 Fast (Non-reasoning)
Benchmarks (5-6)
Ling-flash-2.0

Pricing Comparison

MetricGrok 4 Fast (Non-reasoning)Ling-flash-2.0
Input ($/M tokens)$0.2$0.14
Output ($/M tokens)$0.5$0.57
Cost for 1M input + 100K output tokens:
Grok 4 Fast (Non-reasoning)$0.25
Ling-flash-2.0$0.20

Speed Comparison

Output Speed (tokens/s) — higher is better
Grok 4 Fast (Non-reasoning)
123 tok/s
Ling-flash-2.0
64 tok/s
Time to First Token (seconds) — lower is better
Grok 4 Fast (Non-reasoning)
0.30s
Ling-flash-2.0
1.43s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
23.115.7
Coding Index
19.016.7
Math Index
41.365.3
GPQA Diamond
60.6%65.7%
MMLU-Pro
73.0%77.7%
LiveCodeBench
40.1%58.9%
AIME 2025
41.3%65.3%
MATH-500
Humanity's Last Exam
5.0%6.3%
SciCode
32.9%28.9%
IFBench
37.7%34.4%
TerminalBench
12.1%10.6%
Grok 4 Fast (Non-reasoning)5 wins
6 winsLing-flash-2.0

Frequently Asked Questions

Which is cheaper, Grok 4 Fast (Non-reasoning) or Ling-flash-2.0?

Ling-flash-2.0 is cheaper overall. Its blended price (3:1 input/output ratio) is $0.25/M tokens vs $0.28/M for Grok 4 Fast (Non-reasoning).

Which model performs better on benchmarks?

Ling-flash-2.0 wins 6 out of 12 benchmarks compared to 5 for Grok 4 Fast (Non-reasoning). See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Grok 4 Fast (Non-reasoning) generates tokens faster at 123 tok/s vs 64 tok/s. Grok 4 Fast (Non-reasoning) also has lower time-to-first-token (0.30s vs 1.43s).

When should I use Grok 4 Fast (Non-reasoning) vs Ling-flash-2.0?

Choose based on your priorities: Ling-flash-2.0 for lower cost, Ling-flash-2.0 for stronger benchmark performance, and Grok 4 Fast (Non-reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.