What is the most reliable and perfect AI agent for coding and solve complex software solutions?

[damith144]

Including GitHub Copilot agents in project solution thinking and planning.

Free
GPT-4.1
GPT-4o
GPT-5 mini


Paid
Claude Haiku 4.5
Claude Sonnet 4
Claude Sonnet 4.5

Gemini 2.5 Pro
Gemini 3 Flash (Preview)
Gemini 3 Pro (Preview)

GPT-5
GPT-5-Codex (Preview)
GPT-5.1
GPT-5.1-Codex
GPT-5.1-Codex-Max
GPT-5.1-Codex-Mini (Preview)
GPT-5.2

 

[slickdeath]

Copilot is the best for coding related stuff

 

[SK29]

b ubmp

 

[dayt0na]

Claude Code with Opus 4.5 is AGI