gpt-oss-120b vs Nemotron 3.5 Lightning

Price, context window & benchmark comparison

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gpt-oss-120b

OpenAI
$0.15 / $0.60
Input / Output · per 1M tokens
VS
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Nemotron 3.5 Lightning

NVIDIA
$0.08 / $0.20
Input / Output · per 1M tokens
Compare different models
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Verdict: Nemotron 3.5 Lightning is 2.4× cheaper than gpt-oss-120b on a typical 3:1 input/output mix. Nemotron 3.5 Lightning scores higher on the Artificial Analysis Intelligence Index (12.9 vs 11.6). Nemotron 3.5 Lightning has the larger context window (262K vs 131K).
gpt-oss-120bNemotron 3.5 Lightning
Input price / 1M$0.15$0.08
Output price / 1M$0.60$0.20
Blended price (3:1)$0.26$0.11
Cached input / 1M$0.075$0.04
Context window131K262K
Max output66K131K
Intelligence index11.612.9
Coding index30.426.8
Providers4
Best provider uptime (30m)100.0%
Vision inputNoNo
ReasoningYesYes
Tool callingYesYes
Released2025-08-052026-08-11
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FAQ

Which is cheaper, gpt-oss-120b or Nemotron 3.5 Lightning?

Nemotron 3.5 Lightning is 2.4× cheaper than gpt-oss-120b on a typical 3:1 input/output mix.

gpt-oss-120b vs Nemotron 3.5 Lightning: which has a bigger context window?

gpt-oss-120b: 131,072 tokens. Nemotron 3.5 Lightning: 262,144 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: gpt-oss-120b ≈ $600.00, Nemotron 3.5 Lightning ≈ $260.00.

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