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GPT OSS 120B vs Grok Code Fast 1
Comprehensive side-by-side LLM comparison
GPT OSS 120B leads with 45.1% higher average benchmark score. Grok Code Fast 1 offers 3.9K more tokens in context window than GPT OSS 120B. GPT OSS 120B is $1.16 cheaper per million tokens. GPT OSS 120B is available on 5 providers. Overall, GPT OSS 120B is the stronger choice for coding tasks.
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OpenAI
GPT OSS 120B is a language model developed by OpenAI. It achieves strong performance with an average score of 61.7% across 7 benchmarks. It excels particularly in MMLU (90.0%), CodeForces (87.4%), GPQA (80.1%). It supports a 262K token context window for handling large documents. The model is available through 5 API providers. It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents OpenAI's latest advancement in AI technology.
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xAI
Grok Code Fast 1 is a language model developed by xAI. It achieves strong performance with an average score of 70.8% across 1 benchmarks. Notable strengths include SWE-Bench Verified (70.8%). It supports a 266K token context window for handling large documents. The model is available through 1 API provider. Released in 2025, it represents xAI's latest advancement in AI technology.
23 days newer
GPT OSS 120B
OpenAI
2025-08-05
Grok Code Fast 1
xAI
2025-08-28
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Pricing Comparison
Cost per million tokens (USD)
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GPT OSS 120B
Input:$0.09
Output:$0.45($1.16 cheaper)
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Grok Code Fast 1
Input:$0.20
Output:$1.50
Performance Metrics
Context window and performance specifications
Average performance across 8 common benchmarks
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GPT OSS 120B
Average Score:54.0%(+45.1%)
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Grok Code Fast 1
Average Score:8.8%
Provider Availability & Performance
Available providers and their performance metrics
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GPT OSS 120B
5 providers
DeepInfra
Groq
Throughput: 500 tok/s
Latency: 0.5ms
Novita
OpenAI
Throughput: 115 tok/s
Latency: 5.2ms
ZeroEval
Throughput: 500 tok/s
Latency: 0.5ms
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GPT OSS 120B
Avg Score:54.0%(+45.1%)
Providers:5
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Grok Code Fast 1
Avg Score:8.8%
Providers:1