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GPT-OSS-20B vs Kimi K2.5
Comprehensive side-by-side LLM comparison
Kimi K2.5 offers 132.1K more tokens in context window than GPT-OSS-20B. Kimi K2.5 is $Infinity cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
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OpenAI
GPT-OSS-20B is an open-weight large language model with 20 billion parameters from OpenAI's open-source model initiative. It targets deployments requiring a smaller, efficient model that can run on consumer or mid-tier hardware while maintaining strong reasoning and coding capabilities relative to its size.
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Moonshot AI
Kimi K2.5, released by Moonshot AI in January 2026, is an updated Mixture-of-Experts large language model with 1 trillion total parameters and 32 billion active parameters. It builds on Kimi K2 with improved coding performance across multiple languages and an expanded context window. Kimi K2.5 targets agentic development workflows, polyglot code generation, and open-source deployments requiring large-scale MoE reasoning.
4 months newer
GPT-OSS-20B
OpenAI
2025-08-05
Kimi K2.5
Moonshot AI
2026-01
Pricing Comparison
Cost per million tokens (USD)
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GPT-OSS-20B
Input:$Infinity
Output:$Infinity
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Kimi K2.5
Input:$1.50
Output:$6.00($Infinity cheaper)
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
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GPT-OSS-20B
1 providers
Hugging Face
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Kimi K2.5
1 providers
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GPT-OSS-20B
Avg Score:0.0%
Providers:1
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Kimi K2.5
Avg Score:0.0%
Providers:1