ChatGPT vs Claude vs Gemini: Which to Pick for Each Task

As of October 20, 2026, Claude is the app to try first for coding, research, and building presentations, and ChatGPT leads on hard multi-step reasoning. Gemini wins a different test: blind voters prefer it for everyday chat.

Two things matter more than that order. The best models sit behind paid plans, and the benchmark leader isn't always the model people prefer.

For any two of the three, the pair pages go deeper: ChatGPT vs Claude, ChatGPT vs Gemini, and Claude vs Gemini.

Benchmarks pick a winner per job, not one overall winner

We grouped the jobs on our best AI for each job pages by the evidence each one rests on. Then we took the highest-scoring model in each company's current lineup: GPT models for ChatGPT, Claude models for Claude, and Gemini models for Gemini. It's the same comparison the LLM selector shows, and it updates whenever the rankings do.

On the October 25, 2026 data, Claude’s top model scores highest in 4 of the 5 job groups below, and ChatGPT’s leads on reasoning.

Table 1 Download CSV

Job group	ChatGPT	Claude	Gemini
Overall	GPT-6.1 Sol, 84.3	Claude Opus 5.5, 86.6	Gemini 4 Argon, 82.8
Knowledge	GPT-6 Astra, 85.7	Claude Opus 5.5, 89.6	Gemini 4 Argon, 80.8
Reasoning	GPT-6 Astra, 93.3	Claude Opus 5.5, 86.1	Gemini 4 Argon, 86.9
Coding	GPT-6 Astra, 75.7	Claude Sonnet 5.5, 84.4	Gemini 4 Argon, 73.1
Agentic	GPT-6.1 Sol, 76.3	Claude Opus 5.5, 90.4	Gemini 4 Argon, 78.7

Overall is the AI assistant job. Knowledge covers studying and research. Reasoning covers reasoning and RAG. Coding covers Excel, data analysis, coding, debugging, and website building. Agentic covers presentations, agents, and customer service.

Bold marks the highest score in each row. Scores sit on our 0 to 100 benchmark scale, and a gap of a point or two won't tell you which app writes your report better. Act on the rows where the columns are far apart, and treat close rows as ties until your own test breaks them.

One clarification, though: each cell is the best model that company sells, not the model your plan opens by default. Free plans leave out the top models, so read this table together with the plan table further down.

Writing has no row. Our pages for writing emails, marketing copy, and creative writing rank models on instruction following, and we leave a job out of this comparison when fewer than two of the three lineups have a measured model for it. Writing is one of those jobs, so the next section uses blind votes instead.

Blind votes measure something benchmarks don't

Arena runs blind tests. Someone types a prompt, two anonymous models answer, and the person picks the reply they prefer. Enough of those votes turn into a rating for each model. A benchmark grades an answer against a key, while Arena records which answer a person liked.

Table 2 Download CSV

Arena category	ChatGPT	Claude	Gemini
Text Overall	GPT-6.1 Sol, 1,484 ±9	Claude Opus 5.5, 1,507 ±8	Gemini 4 Argon, 1,525 ±9
Creative Writing	GPT-6.1 Sol, 1,462 ±20	Claude Opus 5.5, 1,517 ±17	Gemini 4 Argon, 1,519 ±20

Each rating comes with a ± margin that Arena publishes. Bold marks the top rating and any rating whose margin overlaps it, so two bold entries in a row are a statistical tie.

Gemini 4 Argon (1,525 ±9) leads Arena's overall text votes, ahead of Claude Opus 5.5 (1,507 ±8) and ChatGPT's GPT-6.1 Sol (1,484 ±9). Arena scores as of October 12, 2026.

On these October numbers the two kinds of evidence point different ways. Graded tests put Claude's best model ahead for most jobs, and the people voting preferred Gemini's.

Neither result is the real one. Arena's prompts are whatever its visitors choose to type, and a vote rewards the reply that person liked better. Benchmarks are narrower and stricter, and they reward the correct answer. If your day is quick questions, trip planning, and rewording messages, the votes are closer to your use. If you hand the app a spreadsheet or a codebase, the graded results are.

Writing: the top-rated models both need a paid plan

For writing, Arena's creative-writing votes are the best evidence we have that covers all three apps.

Gemini 4 Argon (1,519 ±20) and Claude Opus 5.5 (1,517 ±17) are tied at the top of Arena's Creative Writing votes, because their margins overlap. ChatGPT's GPT-6.1 Sol (1,462 ±20) is further back. Arena scores as of October 12, 2026.

The catch for most readers is that neither model at the top comes free. Claude Free lists Sonnet and Haiku but not Opus, according to the plan registry we keep from Anthropic's pricing page. Google's plan page says Gemini 4 Argon is available to Google AI Pro and Ultra subscribers. On the free tiers, you're comparing Claude Sonnet with Google's lighter Gemini models and with ChatGPT's free plan, and on the October 12 Arena read, Claude Sonnet 5.5 rated about level with ChatGPT's best model for creative writing.

Votes measure preference, not whether a draft follows your brief or keeps your facts straight. For that, test on your own material: give each app the same three briefs and count the edits before each draft is usable. Our writing guide walks through that test.

Gemini has one advantage that no rating captures. Google AI Pro puts Gemini inside Gmail and Docs, according to Google's plan help page. If most of your writing is email replies and documents you already keep in Google's apps, that may matter more than a tie in the ratings.

Coding and research: check the limits, not just the scores

The coding row in the first table covers the jobs most people mean by coding: spreadsheet formulas, data analysis, debugging, and building a website. On the October 20 data, Claude's lineup leads it. The full ranking across every lab is on the coding leaderboard, and the coding job page has the shortlist.

For a paid user, the bigger question is how much use the plan buys. Claude Pro includes Claude Code and meters usage in five-hour sessions with a weekly cap, as our Claude usage limits page explains. OpenAI publishes estimated Codex message ranges per five-hour window for Plus, and the range shifts with the model you pick (Codex usage limits). If you code every day, read those limits before the scores. A plan you exhaust by Wednesday costs you more than a few points of benchmark score.

Research and studying fall under the knowledge row, which Claude's top model leads on the October 20 data. That row comes from exam-style questions, so it doesn't establish whether an app finds good sources or cites them accurately. Check the citations on a topic you know well before you trust either app with one you don't.

ChatGPT's best model leads the reasoning row, which covers multi-step problems and answering questions from documents you upload. If your work is long chains of logic, such as planning a budget with many constraints or checking a contract against a policy, start there. Our research job page and studying job page keep the full shortlists.

Everyday use comes down to the free plan and your tools

For quick questions, recipes, travel plans, and rewriting a message, all three apps do the job, and the blind votes above favor Gemini. What separates them for daily use is mostly outside the model.

Table 3 Download CSV

If you mostly...	Start with	Why
Live in Gmail and Google Docs	Gemini	Google AI Pro puts Gemini inside both
Want the cheapest paid upgrade	Gemini	Google AI Plus is the lowest-priced paid plan we list, though it doesn't include Gemini 4 Argon
Write long documents or code	Claude	Its models lead our coding and knowledge rows
Ask hard multi-step questions	ChatGPT	Its best model leads our reasoning row

We don't have a pick for voice conversations or image generation. Our voice and image job pages say so and point to the voice benchmarks and image and video pricing instead. A claim that one app wins on voice needs a test of the apps' voice modes, and the model rankings above don't supply one.

Memory, saved projects, and how each app handles your history differ too, and none of those shows up in a benchmark. If you've built months of context in one app, that's a real switching cost.

What each plan gets you

Prices and model lists below come from our subscription registry, which copies each company's own pricing page, read October 16, 2026 for ChatGPT and Claude, and October 21, 2026 for Gemini.

Table 4 Download CSV

App	Plan	Per month	Models the plan lists
ChatGPT	Free	Free	GPT-6 Luna in Codex; GPT-5.6 Terra with limited access in Work and Codex on desktop.
ChatGPT	Go	$8	GPT-6 Luna in Codex; GPT-5.6 Terra with limited access in Work and Codex on desktop.
ChatGPT	Plus	$20	GPT-6 Astra, GPT-6.1 Sol, GPT-6 Sol and GPT-6 Luna in Codex; GPT-6.1 Sol is available in Work and Codex, not Chat.
ChatGPT	Pro 100	$100	GPT-6 Astra, GPT-6.1 Sol, GPT-6 Sol and GPT-6 Luna with expanded access, plus GPT-5.6 Sol Pro.
ChatGPT	Pro 200	$200	GPT-6 Astra, GPT-6.1 Sol, GPT-6 Sol and GPT-6 Luna with expanded access, plus GPT-5.6 Sol Pro.
ChatGPT	Pro 500	$500	GPT-6 Astra, GPT-6.1 Sol, GPT-6 Sol and GPT-6 Luna with expanded access, plus GPT-5.6 Sol Pro; Ultrafast for GPT-6 Astra and GPT-6.1 Sol.
Claude	Free	Free	Sonnet and Haiku; the plan comparison lists no Opus or Fable access on Free.
Claude	Pro	$20	Opus, Sonnet and Haiku; Fable is listed under usage credits rather than the included allowance.
Claude	Max 5x	$100	Opus, Sonnet and Haiku; Fable at 50% of weekly limits, tracked as a separate weekly Fable limit.
Claude	Max 20x	$200	Opus, Sonnet and Haiku; Fable at 50% of weekly limits, tracked as a separate weekly Fable limit.
Gemini	Free	Free	Flash-Lite ("Access to our Flash-Lite model"); the page lists no Flash, Pro or Gemini 4 Argon access on Free.
Gemini	Google AI Plus	$4.99	Flash ("Access to our Flash model"); the page lists Gemini 4 Argon only on Google AI Pro and Ultra.
Gemini	Google AI Pro	$19.99	Gemini 4 Argon, the Pro model and the Flash model.
Gemini	Google AI Ultra 5x	$99.99	Highest access to Gemini 4 Argon, the Pro model and the Flash model.
Gemini	Google AI Ultra 20x	$199.99	Highest access to Gemini 4 Argon, the Pro model and the Flash model.

Three lines in that table change the advice above. On ChatGPT Plus, OpenAI lists GPT-6.1 Sol in Work and Codex rather than in Chat, so the chat window isn't where Plus gives you that model. On Claude, Opus starts at Pro, so a free user is testing Sonnet, not the model that leads most of our rows. On Gemini, Argon starts at Google AI Pro, and the cheaper Google AI Plus lists only the Flash model.

Google sets plan prices by country, and its plan pages show each reader the prices for their own region. The Gemini rows come from Google's United States subscriptions page; outside the US, the Google AI plans page shows your price.

For a single-app decision, Claude plans in detail, Claude Pro vs Max, and whether ChatGPT Plus is worth it go further. If you call these models through an API rather than an app, per-token rates are on LLM pricing and the full model ranking is on the leaderboard.

Where each pick is the wrong one

Claude is the wrong first pick if you need the cheapest paid tier or you keep running into usage limits. Its first paid plan costs $20, against $8 for ChatGPT Go and $4.99 for Google AI Plus, and the five-hour session limit is the one we'd check first against your own use.

ChatGPT is the wrong pick for writing-heavy work, where its best model trails on blind creative-writing votes. It's also the wrong pick for daily coding on Plus if the Codex allowance runs out before your week does.

Gemini is the wrong pick when you want the leader on coding or agent tasks, and its top model needs Google AI Pro or Ultra.

So start with the free plan of the app that leads your main job in the first table. Run the same three real tasks through it and one other app, and pay for the one whose answers you edit least. The tables here re-render with every ranking update, so the row to recheck before you renew is the one for your job.