Comprehensive side-by-side LLM comparison
Kimi K2 Thinking offers 132.1K more tokens in context window than GPT-OSS-20B. Kimi K2 Thinking is $Infinity cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
OpenAI
GPT-OSS-20B is an open-weight large language model with 20 billion parameters from OpenAI's open-source model initiative. It targets deployments requiring a smaller, efficient model that can run on consumer or mid-tier hardware while maintaining strong reasoning and coding capabilities relative to its size.
Moonshot AI
Kimi K2 Thinking, released by Moonshot AI on November 6, 2025, is a reasoning-focused variant of Kimi K2 with 1 trillion total parameters and 32 billion active parameters, featuring extended chain-of-thought processing for complex problem solving. It builds on K2's agentic coding strengths with additional capabilities for mathematical and scientific reasoning. Kimi K2 Thinking targets open-source deployments requiring deep, deliberate reasoning across coding and analytical domains.
3 months newer

GPT-OSS-20B
OpenAI
2025-08-05
Kimi K2 Thinking
Moonshot AI
2025-11-06
Cost per million tokens (USD)
GPT-OSS-20B
Kimi K2 Thinking
Context window and performance specifications
Available providers and their performance metrics
GPT-OSS-20B
Hugging Face
Kimi K2 Thinking
GPT-OSS-20B
Kimi K2 Thinking
GPT-OSS-20B
Kimi K2 Thinking
Moonshot AI