Compare/Apertus 70B Instruct vs Kimi K2.5 (Non-reasoning)

Apertus 70B InstructvsKimi K2.5 (Non-reasoning)

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

Swiss AI Initiative

Apertus 70B Instruct

Input
$0.82/M
Output
$2.92/M
Speed
64 tok/s
TTFT
1.68s
Kimi

Kimi K2.5 (Non-reasoning)

Input
$0.6/M
Output
$3/M
Speed
33 tok/s
TTFT
1.40s

Winner by Category

Cheaper
Kimi K2.5 (Non-reasoning)
Faster (tok/s)
Apertus 70B Instruct
Lower Latency
Kimi K2.5 (Non-reasoning)
Benchmarks (0-7)
Kimi K2.5 (Non-reasoning)

Pricing Comparison

MetricApertus 70B InstructKimi K2.5 (Non-reasoning)
Input ($/M tokens)$0.82$0.6
Output ($/M tokens)$2.92$3
Cost for 1M input + 100K output tokens:
Apertus 70B Instruct$1.11
Kimi K2.5 (Non-reasoning)$0.90

Speed Comparison

Output Speed (tokens/s) — higher is better
Apertus 70B Instruct
64 tok/s
Kimi K2.5 (Non-reasoning)
33 tok/s
Time to First Token (seconds) — lower is better
Apertus 70B Instruct
1.68s
Kimi K2.5 (Non-reasoning)
1.40s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
7.737.3
Coding Index
1.925.8
Math Index
GPQA Diamond
27.2%78.9%
MMLU-Pro
LiveCodeBench
AIME 2025
MATH-500
Humanity's Last Exam
5.5%12.3%
SciCode
5.7%39.6%
IFBench
25.9%43.7%
TerminalBench
0.0%18.9%
Apertus 70B Instruct0 wins
7 winsKimi K2.5 (Non-reasoning)

Frequently Asked Questions

Which is cheaper, Apertus 70B Instruct or Kimi K2.5 (Non-reasoning)?

Kimi K2.5 (Non-reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $1.20/M tokens vs $1.34/M for Apertus 70B Instruct.

Which model performs better on benchmarks?

Kimi K2.5 (Non-reasoning) wins 7 out of 12 benchmarks compared to 0 for Apertus 70B Instruct. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Apertus 70B Instruct generates tokens faster at 64 tok/s vs 33 tok/s. However, Kimi K2.5 (Non-reasoning) has lower time-to-first-token (1.40s vs 1.68s).

When should I use Apertus 70B Instruct vs Kimi K2.5 (Non-reasoning)?

Choose based on your priorities: Kimi K2.5 (Non-reasoning) for lower cost, Kimi K2.5 (Non-reasoning) for stronger benchmark performance, and Apertus 70B Instruct for faster generation. For latency-sensitive apps, check the TTFT comparison above.