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GPT-5 Pro vs Kimi K2.5
Comprehensive side-by-side LLM comparison
GPT-5 Pro leads with 7.3% higher average benchmark score. GPT-5 Pro supports multimodal inputs. Overall, GPT-5 Pro is the stronger choice for coding tasks.
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OpenAI
GPT-5 Pro is an extended-reasoning variant from the GPT-5 family that applies more compute per response for deeper, more thorough answers on complex problems. It features the same 400K token context window and multimodal capabilities as GPT-5, with additional reasoning depth suited to research-grade analysis, advanced coding, and tasks requiring comprehensive, accurate outputs.
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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-5 Pro
OpenAI
2025-08-07
Kimi K2.5
Moonshot AI
2026-01
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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GPT-5 Pro
Average Score:31.6%(+7.3%)
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Kimi K2.5
Average Score:24.4%
Performance comparison across key benchmark categories
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GPT-5 Pro
Reasoning31.6%(+7.3%)
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Kimi K2.5
Reasoning24.4%
Provider Availability & Performance
Available providers and their performance metrics
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GPT-5 Pro
0 providers
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Kimi K2.5
1 providers
Moonshot AI
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GPT-5 Pro
Avg Score:31.6%(+7.3%)
Providers:0
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Kimi K2.5
Avg Score:24.4%
Providers:1