Compare/Inkling vs GPT-5.4 mini (xhigh)

InklingvsGPT-5.4 mini (xhigh)

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

Thinking Machines

Inkling

Input
$1.87/M
Output
$4.68/M
Speed
83 tok/s
TTFT
1.63s
OpenAI

GPT-5.4 mini (xhigh)

Input
$0.75/M
Output
$4.5/M
Speed
175 tok/s
TTFT
5.25s

Winner by Category

Cheaper
GPT-5.4 mini (xhigh)
Faster (tok/s)
GPT-5.4 mini (xhigh)
Lower Latency
Inkling
Benchmarks (2-5)
GPT-5.4 mini (xhigh)

Pricing Comparison

MetricInklingGPT-5.4 mini (xhigh)
Input ($/M tokens)$1.87$0.75
Output ($/M tokens)$4.68$4.5
Cost for 1M input + 100K output tokens:
Inkling$2.34
GPT-5.4 mini (xhigh)$1.20

Speed Comparison

Output Speed (tokens/s) — higher is better
Inkling
83 tok/s
GPT-5.4 mini (xhigh)
175 tok/s
Time to First Token (seconds) — lower is better
Inkling
1.63s
GPT-5.4 mini (xhigh)
5.25s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
40.740.0
Coding Index
52.156.1
Math Index
GPQA Diamond
87.2%87.5%
MMLU-Pro
LiveCodeBench
AIME 2025
MATH-500
Humanity's Last Exam
29.7%26.6%
SciCode
46.1%49.9%
IFBench
73.3%
TerminalBench
52.3%
Inkling2 wins
5 winsGPT-5.4 mini (xhigh)

Frequently Asked Questions

Which is cheaper, Inkling or GPT-5.4 mini (xhigh)?

GPT-5.4 mini (xhigh) is cheaper overall. Its blended price (3:1 input/output ratio) is $1.69/M tokens vs $2.57/M for Inkling.

Which model performs better on benchmarks?

GPT-5.4 mini (xhigh) wins 5 out of 12 benchmarks compared to 2 for Inkling. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

GPT-5.4 mini (xhigh) generates tokens faster at 175 tok/s vs 83 tok/s. Inkling also has lower time-to-first-token (1.63s vs 5.25s).

When should I use Inkling vs GPT-5.4 mini (xhigh)?

Choose based on your priorities: GPT-5.4 mini (xhigh) for lower cost, GPT-5.4 mini (xhigh) for stronger benchmark performance, and GPT-5.4 mini (xhigh) for faster generation. For latency-sensitive apps, check the TTFT comparison above.