+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
GPT-OSS-120B vs Kimi K2.5
Comprehensive side-by-side LLM comparison
Kimi K2.5 offers 132.1K more tokens in context window than GPT-OSS-120B. Kimi K2.5 is $Infinity cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
+
+
+
+
OpenAI
GPT-OSS-120B, released by OpenAI in August 2025, is an open-weight large language model with 120 billion parameters distributed under the Apache 2.0 license. It represents OpenAI's entry into the open-source model space, enabling developers to self-host and fine-tune a GPT-5-generation-class model. GPT-OSS-120B targets research applications, on-premises deployments, and custom fine-tuning workflows requiring a large open-weight base model.
+
+
+
+
Moonshot AI
Kimi K2.5, released by Moonshot AI in January 2026, is an updated Mixture-of-Experts large language model with 1 trillion total parameters and 32 billion active parameters. It builds on Kimi K2 with improved coding performance across multiple languages and an expanded context window. Kimi K2.5 targets agentic development workflows, polyglot code generation, and open-source deployments requiring large-scale MoE reasoning.
5 months newer
GPT-OSS-120B
OpenAI
2025-08
Kimi K2.5
Moonshot AI
2026-01
Pricing Comparison
Cost per million tokens (USD)
+
+
+
+
GPT-OSS-120B
Input:$Infinity
Output:$Infinity
+
+
+
+
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
+
+
+
+
GPT-OSS-120B
1 providers
Hugging Face
+
+
+
+
Kimi K2.5
1 providers
+
+
+
+
GPT-OSS-120B
Avg Score:0.0%
Providers:1
+
+
+
+
Kimi K2.5
Avg Score:0.0%
Providers:1