Field Note — Model Selection

SYSTEMS NOTE // 05  ·  JULY 2026  ·  SGI RESEARCH

CHATGPT VS GROK VS
GEMINI VS CLAUDE VS PERPLEXITY

Five assistants, five different jobs. The right pick depends on what you're actually doing — drafting, tracking a live feed, working inside Google's stack, reading a long contract, or checking a claim against sources.

PINNED0Assistants compared
PINNED0Use cases logged per tool
PINNED0Pro tip per tool
ChatGPT Grok Gemini Claude Perplexity Use Cases Strengths Pro Tips ChatGPT Grok Gemini Claude Perplexity Use Cases Strengths Pro Tips

Side by Side

Same Job,
Different Tool

Click a column to pin it and dim the rest — click again to release

PINNED
GPT
ChatGPT

Best for creative drafting, coding, and everyday productivity work.

Use Cases
  • Brainstorming and expanding on early-stage ideas
  • Writing, debugging, and optimizing code
  • Building study guides and learning plans
  • Drafting marketing copy and long-form storytelling
Strengths
  • Multimodal — handles text, images, and file uploads
  • Strong reasoning and creative range across topics
  • Custom GPTs built for specific recurring workflows
  • Recalls context well across long-running projects
Pro tipUse it to automate a workflow end to end — planning, drafting, and analysis in one thread.
PINNED
GRK
Grok

Best for real-time trends, pop culture, and unfiltered takes.

Use Cases
  • Tracking what's trending on X in real time
  • Summarizing public sentiment quickly
  • Writing witty, conversational posts
  • Exploring informal or off-the-cuff takes
Strengths
  • Connected directly to real-time social feeds
  • Sharp, punchy, and distinctly humorous tone
  • Well suited to creators and marketers
  • Fast to react to breaking events
Pro tipUse it to shape viral posts or social commentary that needs a strong point of view.
PINNED
GEM
Gemini

Best for working inside Google Workspace with live web access.

Use Cases
  • Planning projects across Docs, Sheets, or Slides
  • Researching with up-to-date web data
  • Collaborative editing and knowledge sharing
  • Streamlining workflows across Gmail and Drive
Strengths
  • Deep native integration with Google apps
  • Real-time search paired with current information
  • Handles structured, team-based work well
  • Fits smoothly into existing business environments
Pro tipUse it to organize and collaborate directly inside Workspace so everything stays connected.
PINNED
CLD
Claude

Best for deep reading, comprehension, and careful reasoning.

Use Cases
  • Reviewing lengthy reports or contracts
  • Summarizing legal or research documents
  • Policy writing and detailed technical drafts
  • Work that needs nuance, tone, and reasoning
Strengths
  • Handles very long documents without losing thread
  • Strong at summarizing and rewriting complex text
  • Balanced tone and natural-sounding writing
  • Prioritizes safety, reasoning, and factual accuracy
Pro tipUse it to summarize, fact-check, or rewrite large, complex documents into something simple.
PINNED
PPX
Perplexity

Best for verified research, fact-checking, and sourced answers.

Use Cases
  • Finding accurate data with citations attached
  • Researching niche or academic topics
  • Comparing multiple reliable sources at once
  • Getting quick summaries with verifiable references
Strengths
  • Cites sources by default, not on request
  • Real-time, web-grounded answers
  • Strong summarization for research use
  • Reliable for quick, verifiable answers
Pro tipUse it when accuracy and verification matter most — research reports and sourcing.

THE BEST MODEL
ISN'T THE STRONGEST ONE.
IT'S THE ONE BUILT
FOR THE JOB IN FRONT OF YOU.

More Tools.
More Notes.
Comparison basis Best-for, use cases, strengths, pro tip