Grok 4.6 vs Nemotron 3.5 Lightning

Price, context window & benchmark comparison

X

Grok 4.6

xAI
$2.00 / $6.00
Input / Output · per 1M tokens
VS
N

Nemotron 3.5 Lightning

NVIDIA
$0.08 / $0.20
Input / Output · per 1M tokens
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Verdict: Nemotron 3.5 Lightning is 27.3× cheaper than Grok 4.6 on a typical 3:1 input/output mix. Grok 4.6 scores higher on the Artificial Analysis Intelligence Index (44.3 vs 12.9). Grok 4.6 has the larger context window (500K vs 262K).
Grok 4.6Nemotron 3.5 Lightning
Input price / 1M$2.00$0.08
Output price / 1M$6.00$0.20
Blended price (3:1)$3.00$0.11
Cached input / 1M$0.50$0.04
Context window500K262K
Max output450K131K
Intelligence index44.312.9
Coding index76.826.8
Providers54
Best provider uptime (30m)100.0%100.0%
Vision inputYesNo
ReasoningYesYes
Tool callingYesYes
Released2026-08-122026-08-11
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FAQ

Which is cheaper, Grok 4.6 or Nemotron 3.5 Lightning?

Nemotron 3.5 Lightning is 27.3× cheaper than Grok 4.6 on a typical 3:1 input/output mix.

Grok 4.6 vs Nemotron 3.5 Lightning: which has a bigger context window?

Grok 4.6: 500,000 tokens. Nemotron 3.5 Lightning: 262,144 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Grok 4.6 ≈ $7,000, Nemotron 3.5 Lightning ≈ $260.00.

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