Compare/Kimi K2 vs Nova 2.0 Omni (medium)

Kimi K2vsNova 2.0 Omni (medium)

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

Kimi

Kimi K2

Input
$0.585/M
Output
$2.4/M
Speed
34 tok/s
TTFT
1.11s
Amazon

Nova 2.0 Omni (medium)

Input
$0.3/M
Output
$2.5/M
Speed
TTFT

Winner by Category

Cheaper
Nova 2.0 Omni (medium)
Faster (tok/s)
Kimi K2
Lower Latency
Nova 2.0 Omni (medium)
Benchmarks (6-6)
Tie

Pricing Comparison

MetricKimi K2Nova 2.0 Omni (medium)
Input ($/M tokens)$0.585$0.3
Output ($/M tokens)$2.4$2.5
Cost for 1M input + 100K output tokens:
Kimi K2$0.82
Nova 2.0 Omni (medium)$0.55

Speed Comparison

Output Speed (tokens/s) — higher is better
Kimi K2
34 tok/s
Nova 2.0 Omni (medium)
Time to First Token (seconds) — lower is better
Kimi K2
1.11s
Nova 2.0 Omni (medium)

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
26.328.0
Coding Index
22.115.1
Math Index
57.089.7
GPQA Diamond
76.6%76.0%
MMLU-Pro
82.4%80.9%
LiveCodeBench
55.6%66.0%
AIME 2025
57.0%89.7%
MATH-500
97.1%
Humanity's Last Exam
7.0%6.8%
SciCode
34.5%36.2%
IFBench
41.5%66.2%
TerminalBench
15.9%4.5%
Kimi K26 wins
6 winsNova 2.0 Omni (medium)

Frequently Asked Questions

Which is cheaper, Kimi K2 or Nova 2.0 Omni (medium)?

Nova 2.0 Omni (medium) is cheaper overall. Its blended price (3:1 input/output ratio) is $0.85/M tokens vs $1.04/M for Kimi K2.

Which model performs better on benchmarks?

It's a tie — both models win 6 benchmarks each across 12 evaluated categories. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Kimi K2 generates tokens faster at 34 tok/s vs 0 tok/s. However, Nova 2.0 Omni (medium) has lower time-to-first-token (0.00s vs 1.11s).

When should I use Kimi K2 vs Nova 2.0 Omni (medium)?

Choose based on your priorities: Nova 2.0 Omni (medium) for lower cost, both perform similarly on benchmarks, and Kimi K2 for faster generation. For latency-sensitive apps, check the TTFT comparison above.