Claude vs ChatGPT vs Gemini for Your Resume, With Every Invented Claim Counted

Resumedit makes one of the four tools compared here. Every output below is real, and every model name and price comes from the vendor, checked October 2026.

Claude vs ChatGPT vs Gemini vs Resumedit at a glance

How the test worked

Each tool got the same fictional marketing coordinator resume and the same Marketing Specialist posting, both written for this guide. The three chatbots got this exact prompt, with the posting and resume pasted in full, once each, in a new chat:

Tailor this resume to this job description. Return the full rewritten resume.

JOB DESCRIPTION:
<job description>

RESUME:
<resume>

• Claude: claude.ai on a paid plan, model Opus 5.5 at Medium effort.
• ChatGPT: OpenAI's API with gpt-6-astra, the model the ChatGPT app had selected the same day.
• Gemini: gemini.google.com on the free plan, in Auto mode (Gemini 3 models).
• Resumedit: the resume tailor, given the same resume and posting.

All four ran on October 23, 2026. This is one test on one resume, not a benchmark. Run the same prompt tomorrow, or on a different plan, and the answers will change. Use the counts to know what to look for in your own results.

An invented claim is any tool, number, result, job title or duty that the original resume neither says nor clearly implies. Purpose phrases such as "to support customer engagement" were not counted.

Alex Rivera
alex.rivera@example.com | (555) 014-2290 | Denver, CO

SUMMARY
Marketing coordinator with 3 years running email campaigns and social media for a regional retailer.

EXPERIENCE
Marketing Coordinator, Summit Outdoor Supply, Denver CO
May 2022 - Present
- Sent weekly promotional emails to our customer list using Mailchimp
- Posted on Instagram and Facebook and replied to comments
- Pulled monthly numbers from Google Analytics for the team meeting
- Helped plan two in-store events each year with the store managers

Marketing Assistant, Front Range Credit Union, Lakewood CO
June 2021 - April 2022
- Updated pages on the website in WordPress
- Wrote copy for brochures and the member newsletter

EDUCATION
B.A. Communications, Colorado State University, 2021

SKILLS
Mailchimp, Google Analytics, WordPress, Canva, Microsoft Excel

Marketing Specialist
Requirements:
- 2+ years of experience in email marketing and social media
- Experience with an email platform such as Mailchimp or HubSpot
- Comfortable reporting campaign performance using Google Analytics
- Strong copywriting skills
- Experience coordinating events is a plus
- Bachelor's degree in Marketing, Communications or a related field
Responsibilities:
- Plan and send email campaigns and segment audiences
- Manage social media calendars across Instagram, Facebook and LinkedIn
- Report on campaign results and recommend improvements

What each tool wrote

Claude (Opus 5.5): 2 invented claims

The best-written rewrite of the four. Every line reads like a person wrote it. Two duties grew past what the resume says:

Claude then listed what it left out because the resume did not support it: audience segmentation, LinkedIn, content calendars and recommending improvements. It also suggested a line with blanks for real numbers, "Sent weekly campaigns to [X]K subscribers, averaging [Y]% open rate." That list is the most useful part of any answer in this test.

ChatGPT (gpt-6-astra): 0 invented claims

ChatGPT kept to the facts. It kept Alex's helper role on the events and added none of the posting's missing tools:

The output came back in markdown, with # headings and ** bold, so it needs cleaning before it goes in a document. ChatGPT also said nothing about what the resume was missing.

Gemini (Auto mode): 14 invented claims

Gemini wrote the most confident resume and invented the most. It took the posting's wording and wrote it in as Alex's experience:

This was Gemini's free Auto mode. A paid Gemini model may do better, so test it with your own resume before you trust it.

Resumedit: 0 invented claims

Resumedit changed the least. The summary stayed as written, and most bullets did too. It moved Instagram and Facebook into the skills line, because a bullet already showed that work, and rewrote one bullet toward the posting:

It left HubSpot out and listed it as a requirement the resume does not show, so you can add it only if you have used it. If you want a stronger read, Claude's rewrite is better written. Use Resumedit when every line has to hold up in an interview.

Which to use, task by task

Rewriting bullets

Claude wrote the best lines, and ChatGPT was close behind. Both still need a check: compare each new verb with what you did. "Helped plan" and "coordinated" are different jobs in an interview.

Tailoring to a job posting

This is where chatbots invent. Gemini wrote HubSpot, LinkedIn and audience segmentation into the resume because the posting asked for them. Claude and ChatGPT left them out. Whatever you use, search the answer for every tool in the posting and delete any you have not used. The resume tailor only uses requirements your resume already shows.

Summaries

Keep the job title you held. Gemini called Alex a "Results-driven Marketing Specialist", the title of the job being applied for. Claude kept "Marketing coordinator", and ChatGPT wrote "Marketing professional".

Adding numbers

Only you know your numbers. Gemini invented a daily posting schedule and growth it could not know. Claude left blanks like [X] for you to fill. Ask any chatbot for blanks, then fill each one with a real figure or delete it.

Checking ATS readability

None of the three chatbots shows what an applicant tracking system reads from your file. A PDF with columns, tables or text in images can come out jumbled or empty, and a chatbot never sees that. The free ATS checker reads your PDF, DOCX or TXT file as plain text, the way an applicant tracking system does.

Who should pick which

• Pick Claude if you want the best-written rewrite and a list of gaps to fill yourself.
• Pick ChatGPT if you want a careful rewrite that sticks to your facts.
• Pick Gemini if you already use it and will check every line it adds against your resume.
• Pick Resumedit if you want tailoring that only reshapes what your resume says, plus an ATS check of your file.

Prices

Each vendor's own pricing page, checked October 2026. Confirm at checkout.

• Claude: free plan. Pro is $20 a month, or $17 a month billed yearly ($200). Max starts at $100 a month. claude.com/pricing
• ChatGPT: free plan. Go is $8 a month, Plus $20 a month, and Pro starts at $100 a month. openai.com/chatgpt/pricing
• Gemini: free plan. Google AI Plus is $4.99 a month, Google AI Pro $19.99, and Google AI Ultra starts at $99.99. gemini.google/subscriptions
• Resumedit: the ATS checker is free with no account. Pro is $29 a month, or $199 a year. Resumedit pricing

Questions