GPT OSS 120BvsGrok 3 Beta
GPT OSS 120B is cheaper than Grok 3 Beta at $0.18/M vs $2/M input tokens.
| Spec | GPT OSS 120B | Grok 3 Beta |
|---|---|---|
| Input price | $0.18/M tokens | $2/M tokens |
| Output price | $0.8/M tokens | $4/M tokens |
| Context window | 131K tokens | 131K tokens |
| Parameters | 117B (5.1B active) | Not disclosed |
| Weights | Open | — |
| Free API (OpenRouter) | No | No |
| Released | Aug 2025 | Apr 2025 |
Our Verdict
GPT OSS 120B
Grok 3 Beta
Not enough votes to call it. On the specs, nothing separates them.
GPT OSS 120B costs 5.0x less per token.
Too close to call
API pricing
Cost per 1M tokens
GPT OSS 120B
Input
$0.18
11× cheaper
Output
$0.80
5.0× cheaper
Grok 3 Beta
Input
$2.00
Output
$4.00
GPT OSS 120B is cheaper on both: 11× input, 5.0× output.
Where to run it
18 hosts, cheapest first
GPT OSS 120B18 hosts
AkashMLbf16$0.03 in$0.17 out131k99.9% upCoreWeavefp4$0.03 in$0.17 out131k99.9% upDeepInfrabf16$0.04 in$0.17 out131k99.4% upDigitalOcean$0.06 in$0.39 out128k99.7% upMancerfp8$0.06 in$0.50 out131k99.6% upGoogle Vertex AI$0.09 in$0.36 out131k99.9% up
12 more hostsFewer hosts
Basetenfp4$0.10 in$0.50 out128k100% upParasailfp4$0.10 in$0.75 out131k100% upSambaNova$0.14 in$0.95 out131k96.9% upAmazon Bedrock$0.15 in$0.60 out131k98.1% upGroq$0.15 in$0.60 out131k100% upNebiusfp4$0.15 in$0.60 out131k96.2% upTogether$0.15 in$0.60 out131k98.8% upCerebrasfp16$0.35 in$0.75 out131k100% upNovitafp4degraded$0.05 in$0.25 out131k86.7% upSiliconFlowfp8degraded$0.05 in$0.45 out131k84.3% upPhaladegraded$0.15 in$0.60 out131k88.8% upMaradegraded$0.15 in$0.75 out131k86% up
Grok 3 Beta
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
53%
GPT OSS 120B uses 15.4x more emoji
GPT OSS 120B
Grok 3 Beta
52%Vocabulary51%
19wSentence Length19w
0.28Hedging0.59
7.4Bold3.1
1.8Lists5.0
0.15Emoji0.00
0.73Headings0.50
0.17Transitions0.28
Based on 21 + 28 text responses
Research
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