Comparing Coding Models on the Same Task in Devin iOS

Melvin Vivas · X post · 2026-10-02 · Open on X

Topics: AI Dev Tools & Productivity, AI Agents, Tool Use & MCP · Level: beginner

Summary

The creator gave Devin's iOS app the same kind of task on three models (Opus 5.5, GPT-6.1 Sol and SWE-2) to compare them. He says onboarding to the app was smooth. Running one task across several models is a simple way to see which works best for you.

Key points

• Run the same or similar tasks across several models to compare them directly.
• Models compared: Opus 5.5, GPT-6.1 Sol and SWE-2.
• Devin's iOS app lets you start agent tasks from your phone.
• Onboarding to the Devin iOS app was smooth.

Resources mentioned

• Devin Mobile · tool · devin.ai · paid
  A mobile app for working with Cognition's Devin coding agent, now in beta.
  Also in: Devin Mobile beta waitlist opens (Melvin Vivas on X · notes)
• Claude Opus 5.5 · tool · claude.ai · paid · open in a browser to verify · recommended by both Bashiri Smith & Melvin Vivas
  Anthropic's AI assistant, used throughout the guide to tailor resumes, add live roles to the tracker, match connections to target companies and find hiring managers.
  Also in: Generating a Repo Promo Video with a Claude Skill on Sonnet 5.5 vs Opus 5.5 (Melvin Vivas on X · notes), Customizing Your Coding Setup with Pi Coding Agent Extensions (Melvin Vivas on X · notes), AI Engineer Roadmap Overview: From ML Foundations to RAG, Agents & Ops (Bashiri Smith on Facebook · notes), LLM Council Agent in Pi Using Codex and Claude Models (Melvin Vivas on X · notes) and 53 more
• GPT-6.1 Sol · tool · openai.com · paid
  A new OpenAI model announced at DevDay 2026 (name as written in the machine transcript), offered with Fast and Ultra fast speed tiers.
  Also in: JevDev: Open-Source UI Tool for Experimenting with Jev (Typesafe.ai) (Melvin Vivas on X · notes), Customizing Your Coding Setup with Pi Coding Agent Extensions (Melvin Vivas on X · notes), Pi Agent Council: Ask Multiple LLMs in Parallel and Compare Their Advice (Melvin Vivas on X · notes), GPT-6.1 and Sonnet 5.5 Released the Same Week (Melvin Vivas on X · notes) and 9 more
• SWE-2 · tool · cognition.com · free
  Cognition's SWE-2 coding model (Max tier) that runs inside Devin for agentic software tasks.
  Also in: Devin's SWE-2 Coding Model Is Free for a Limited Time (Until Oct 8/15) (Melvin Vivas on X · notes), Devin's SWE-2 model is free on paid plans for a limited time (Melvin Vivas on X · notes), Using Devin CLI with the free SWE-2 model for sysadmin tasks (Melvin Vivas on X · notes), Devin adds new frontier models; SWE-2 free until Oct 15 (Melvin Vivas on X · notes) and 8 more

Try this

• Give several models the same coding task and compare the results.