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Model Comparison

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

OpenAI

GPT-5 Codex

OpenAI

GPT-5 Codex is a language model developed by OpenAI. It achieves strong performance with an average score of 74.5% across 1 benchmarks. Notable strengths include SWE-Bench Verified (74.5%). Released in 2025, it represents OpenAI's latest advancement in AI technology.

Moonshot AI

Kimi K2 Instruct

Moonshot AI

Kimi K2 Instruct is a language model developed by Moonshot AI. It achieves strong performance with an average score of 66.7% across 38 benchmarks. It excels particularly in MATH-500 (97.4%), GSM8k (97.3%), CBNSL (95.6%). The model shows particular specialization in reasoning tasks with an average performance of 78.6%. It supports a 262K token context window for handling large documents. The model is available through 1 API provider. 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.

Moonshot AI

Kimi K2 Instruct

Moonshot AI

2025-01-01

OpenAI

GPT-5 Codex

OpenAI

2025-09-15

8 months newer

Performance Metrics

Context window and performance specifications

OpenAI

GPT-5 Codex

Max Context:-
Moonshot AI

Kimi K2 Instruct

Larger context
Max Context:262.1K
Parameters:1.0T

Performance comparison across key benchmark categories

OpenAI

GPT-5 Codex

general
+9.5%
74.5%
Moonshot AI

Kimi K2 Instruct

general
65.0%
Knowledge Cutoff
Training data recency comparison

GPT-5 Codex

2024-09-30

More recent knowledge cutoff means awareness of newer technologies and frameworks

Provider Availability & Performance

Available providers and their performance metrics

OpenAI

GPT-5 Codex

0 providers
Moonshot AI

Kimi K2 Instruct

1 providers

Novita

Throughput: 45 tok/s
Latency: 0.95ms
OpenAI

GPT-5 Codex

Avg Score:0.0%
Providers:0
Moonshot AI

Kimi K2 Instruct

Avg Score:0.0%
Providers:1