gpt-oss-120b vs Granite 4.2 8B

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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Granite 4.2 8B

IBM Granite
$0.06 / $0.25
Input / Output · per 1M tokens
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Verdict: Granite 4.2 8B is 2.4× cheaper than gpt-oss-120b on a typical 3:1 input/output mix. gpt-oss-120b scores higher on the Artificial Analysis Intelligence Index (11.6 vs 11.1).
gpt-oss-120bGranite 4.2 8B
Input price / 1M$0.15$0.06
Output price / 1M$0.60$0.25
Blended price (3:1)$0.26$0.11
Cached input / 1M$0.075$0.015
Context window131K131K
Max output66K118K
Intelligence index11.611.1
Coding index30.422.4
Providers
Best provider uptime (30m)
Vision inputNoNo
ReasoningYesYes
Tool callingYesYes
Released2025-08-052026-08-31
Retirement

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FAQ

Which is cheaper, gpt-oss-120b or Granite 4.2 8B?

Granite 4.2 8B is 2.4× cheaper than gpt-oss-120b on a typical 3:1 input/output mix.

gpt-oss-120b vs Granite 4.2 8B: which has a bigger context window?

gpt-oss-120b: 131,072 tokens. Granite 4.2 8B: 131,072 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: gpt-oss-120b ≈ $600.00, Granite 4.2 8B ≈ $245.00.

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