+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
Kimi K2.5 vs o3 Pro
Comprehensive side-by-side LLM comparison
o3 Pro offers 35.8K more tokens in context window than Kimi K2.5. Kimi K2.5 is $92.50 cheaper per million tokens. o3 Pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
+
+
+
+
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.
+
+
+
+
OpenAI
OpenAI o3-pro, released by OpenAI in June 2025, is an extended reasoning model from the o3 family that applies more compute per response to deliver deeper, more thorough answers on complex problems. It features a 200K token context window, 100K maximum output tokens, and vision capabilities. o3-pro targets research-grade reasoning tasks, extended coding sessions, and applications where accuracy on difficult problems justifies higher inference cost and latency.
6 months newer
o3 Pro
OpenAI
2025-06-10
Kimi K2.5
Moonshot AI
2026-01
Pricing Comparison
Cost per million tokens (USD)
+
+
+
+
Kimi K2.5
Input:$1.50
Output:$6.00($92.50 cheaper)
+
+
+
+
o3 Pro
Input:$20.00
Output:$80.00
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
Kimi K2.5
1 providers
Moonshot AI
+
+
+
+
o3 Pro
1 providers
+
+
+
+
Kimi K2.5
Avg Score:0.0%
Providers:1
+
+
+
+
o3 Pro
Avg Score:0.0%
Providers:1