+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
GPT OSS 20B vs Grok Code Fast 1
Comprehensive side-by-side LLM comparison
Grok Code Fast 1 offers 3.9K more tokens in context window than GPT OSS 20B. GPT OSS 20B is $1.45 cheaper per million tokens. GPT OSS 20B is available on 4 providers. Both models have their strengths depending on your specific coding needs.
+
+
+
+
OpenAI
GPT-OSS 20B was created as a smaller open-source variant, designed to balance capability with accessibility for researchers and developers. Built with 20 billion parameters, it provides a more approachable entry point for those seeking to work with open-source language models while benefiting from OpenAI's architectural insights.
+
+
+
+
xAI
Grok Code Fast was developed as a specialized coding model optimized for speed, designed to provide rapid code completion, generation, and assistance. Built to serve developers requiring quick feedback and iterative coding support, it combines programming expertise with low-latency responses.
23 days newer
GPT OSS 20B
OpenAI
2025-08-05
Grok Code Fast 1
xAI
2025-08-28
+
+
+
+
+
+
+
+
+
+
+
+
Pricing Comparison
Cost per million tokens (USD)
+
+
+
+
GPT OSS 20B
Input:$0.05
Output:$0.20($1.45 cheaper)
+
+
+
+
Grok Code Fast 1
Input:$0.20
Output:$1.50
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
GPT OSS 20B
4 providers
Groq
Throughput: 1000 tok/s
Latency: 0.38ms
Novita
OpenAI
Throughput: 115 tok/s
Latency: 5.2ms
ZeroEval
Throughput: 1000 tok/s
Latency: 0.38ms
+
+
+
+
+
+
GPT OSS 20B
Avg Score:0.0%
Providers:4
+
+
+
+
Grok Code Fast 1
Avg Score:0.0%
Providers:1