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Model Comparison

Comprehensive side-by-side analysis of model capabilities and performance

OpenAI

GPT-5 nano

OpenAI

GPT-5 nano is a multimodal language model developed by OpenAI. The model shows competitive results across 5 benchmarks. It excels particularly in AIME 2025 (85.2%), HMMT 2025 (75.6%), GPQA (71.2%). It supports a 528K token context window for handling large documents. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents OpenAI's latest advancement in AI technology.

Moonshot AI

Kimi K2-Instruct-0905

Moonshot AI

Kimi K2-Instruct-0905 is a language model developed by Moonshot AI. It achieves strong performance with an average score of 64.1% across 29 benchmarks. It excels particularly in MATH-500 (97.4%), MMLU-Redux (92.7%), IFEval (89.8%). It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents Moonshot AI's latest advancement in AI technology.

OpenAI

GPT-5 nano

OpenAI

2025-08-07

Moonshot AI

Kimi K2-Instruct-0905

Moonshot AI

2025-09-05

29 days newer

Performance Metrics

Context window and performance specifications

OpenAI

GPT-5 nano

Larger context
Max Context:528.0K
Moonshot AI

Kimi K2-Instruct-0905

Max Context:-
Parameters:1.0T

Average performance across 3 common benchmarks

OpenAI

GPT-5 nano

+22.9%
Average Score:77.3%
Moonshot AI

Kimi K2-Instruct-0905

Average Score:54.5%

Performance comparison across key benchmark categories

OpenAI

GPT-5 nano

general
39.9%
math
56.8%
Moonshot AI

Kimi K2-Instruct-0905

general
+29.9%
69.9%
math
+8.2%
65.0%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores
Knowledge Cutoff
Training data recency comparison

GPT-5 nano

2024-05-30

More recent knowledge cutoff means awareness of newer technologies and frameworks

Provider Availability & Performance

Available providers and their performance metrics

OpenAI

GPT-5 nano

2 providers

ZeroEval

Throughput: 500 tok/s
Latency: 0.3ms

OpenAI

Throughput: 500 tok/s
Latency: 0.3ms
Moonshot AI

Kimi K2-Instruct-0905

0 providers
OpenAI

GPT-5 nano

+22.9%
Avg Score:77.3%
Providers:2
Moonshot AI

Kimi K2-Instruct-0905

Avg Score:54.5%
Providers:0