Three-way comparison · 2026-09-29
ChatGPT vs Claude vs Gemini: the same prompt, three answers
One prompt, three official sites, three answers
Pairwise scores cannot tell you what matters for your task: whether ChatGPT, Claude or Gemini writes the answer you would actually ship. The honest test is the same prompt into all three official sites, then reading the three answers side by side against your own criteria.
ModelAny sends that one prompt to chatgpt.com, claude.ai and gemini.google.com in parallel—your own accounts, no API key—and collects the three answers in one comparison view.
The five-minute method
- Pick one real task from this week’s work—something you can judge, not a trivia question
- Write the prompt once with its constraints (length, format, audience) and freeze it
- Send it to ChatGPT, Claude and Gemini in one ModelAny send
- Score the three answers on the rubric below while they are fresh
- Note which answer you used and what you edited—that note is the real verdict
A reusable prompt pack
One prompt per capability you are actually choosing between. Copy them, replace the bracketed part, and keep the wording identical across the three sites.
- Reasoning: “Here is our situation: [describe]. List the three decisions we must make first, and for each, what evidence would change your recommendation.”
- Writing: “Rewrite this paragraph for a skeptical [audience]: [paste]. Keep it under 120 words and do not invent facts.”
- Coding: “This test fails: [paste test + error]. Name the most likely cause, then the smallest fix, then what you would check next.”
- Summarizing: “Summarize the attached transcript into at most 8 bullet points with timestamps, then flag any claim you could not verify.”
- Refactoring: “Refactor this function for readability only—no behavior change: [paste]. List every assumption you made.”
Score the three answers on this rubric
- Verifiability: are claims checkable, and does the model flag what it could not check?
- Constraint-keeping: did it respect length, format and audience without being reminded?
- Edit distance: minutes from raw answer to usable result
- Risk handling: does it surface trade-offs and failure modes, or only the happy path?
Where public benchmarks fit
Public benchmark tables (the shared ones are rendered below) are useful context for capability ranges—SWE-bench Verified for real-issue code fixing, Arena preference votes for chat quality. They do not test your prompt. Use them to sanity-check what you saw; use your run to decide.
Get the extension
Install from the official store for your browser. Drafts, settings, history and memory stay on your device; prompts go only to the AI sites you select.
Related pages
What public benchmarks show
Below are results only from public benchmark categories where every model on this page appears together. Scores from different sources cannot be added up, and they do not prove one model is best overall.
SWE-bench Verified · real software-issue fixing
SWE-bench Verified measures how often an AI coding setup can fix real GitHub issues. A higher resolved percentage means more issues were fixed in that specific test setup.
| Product | Exact model version | Rank | Score | Metric |
|---|---|---|---|---|
| Claude | Sonar Foundation Agent + Claude 4.5 Opus | 1 | 79.2% | Resolved (%) |
| Gemini | live-SWE-agent + Gemini 3 Pro Preview (2025-11-18) | 4 | 77.4% | Resolved (%) |
| ChatGPT | JoyCode + Claude 4 Sonnet + GPT-4.1 | 17 | 74.6% | Resolved (%) |
Official sources and verification date
The links below are official sources for product identity and plan information, last checked 2026-09-28. Pricing, model availability, quotas, and regional access can change; confirm on the provider site before purchasing or deploying.
- OpenAI ChatGPT plans and pricing - 2026-09-28
- Anthropic plans and pricing - 2026-09-28
- Google Gemini plans - 2026-09-28
Frequently asked questions
Why the same prompt instead of reading benchmark tables?
Benchmarks measure tasks you do not have, on versions chosen by the tester. A same-prompt run measures your task on today’s live versions—the thing you are actually deciding about.
Can I include DeepSeek, Grok or Chinese models in the same send?
Yes. The launcher supports up to eleven sites; three-way is just the common case. Chinese models such as DeepSeek, Kimi and GLM join the same comparison with the same prompt.
Do free accounts work for this?
Yes. Each site runs under the plan you already have there; free quotas apply. ModelAny itself is free and needs no API key.
Run the same prompt on all three
Install ModelAny for Chrome or Edge, sign in to ChatGPT, Claude and Gemini, and send one prompt to all three at once. Chrome Web Store · Microsoft Edge Add-ons
Install extension