Compare/Grok 4.3 (low) vs Nova 2.0 Lite (high)

Grok 4.3 (low)vsNova 2.0 Lite (high)

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

xAI

Grok 4.3 (low)

Input
$1.25/M
Output
$2.5/M
Speed
158 tok/s
TTFT
4.31s
Amazon

Nova 2.0 Lite (high)

Input
$0.3/M
Output
$2.5/M
Speed
164 tok/s
TTFT
20.30s

Winner by Category

Cheaper
Nova 2.0 Lite (high)
Faster (tok/s)
Nova 2.0 Lite (high)
Lower Latency
Grok 4.3 (low)
Benchmarks (7-4)
Grok 4.3 (low)

Pricing Comparison

MetricGrok 4.3 (low)Nova 2.0 Lite (high)
Input ($/M tokens)$1.25$0.3
Output ($/M tokens)$2.5$2.5
Cost for 1M input + 100K output tokens:
Grok 4.3 (low)$1.50
Nova 2.0 Lite (high)$0.55

Speed Comparison

Output Speed (tokens/s) — higher is better
Grok 4.3 (low)
158 tok/s
Nova 2.0 Lite (high)
164 tok/s
Time to First Token (seconds) — lower is better
Grok 4.3 (low)
4.31s
Nova 2.0 Lite (high)
20.30s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
43.934.5
Coding Index
31.623.4
Math Index
94.3
GPQA Diamond
84.3%81.1%
MMLU-Pro
81.8%
LiveCodeBench
71.1%
AIME 2025
94.3%
MATH-500
Humanity's Last Exam
17.3%10.9%
SciCode
41.9%36.9%
IFBench
81.0%70.7%
TerminalBench
26.5%16.7%
Grok 4.3 (low)7 wins
4 winsNova 2.0 Lite (high)

Frequently Asked Questions

Which is cheaper, Grok 4.3 (low) or Nova 2.0 Lite (high)?

Nova 2.0 Lite (high) is cheaper overall. Its blended price (3:1 input/output ratio) is $0.85/M tokens vs $1.56/M for Grok 4.3 (low).

Which model performs better on benchmarks?

Grok 4.3 (low) wins 7 out of 12 benchmarks compared to 4 for Nova 2.0 Lite (high). See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Nova 2.0 Lite (high) generates tokens faster at 164 tok/s vs 158 tok/s. Grok 4.3 (low) also has lower time-to-first-token (4.31s vs 20.30s).

When should I use Grok 4.3 (low) vs Nova 2.0 Lite (high)?

Choose based on your priorities: Nova 2.0 Lite (high) for lower cost, Grok 4.3 (low) for stronger benchmark performance, and Nova 2.0 Lite (high) for faster generation. For latency-sensitive apps, check the TTFT comparison above.