Leave a product, not a brand
“ChatGPT alternative” usually means one of three jobs: a free chat box, a cheaper paid plan, or a different pipe — search with citations, a Microsoft account, a multi-model arena.
Those are not the same product. A listicle that ranks Gemini, DeepSeek, Copilot, Perplexity and Arena as if they were ten flavours of Plus is how people pick the wrong bill.
I opened the official pricing and product pages on 23 August 2026. Dollar figures below are what those pages print, mostly US. A Nigerian checkout can show another number. I am not inventing naira prices I did not see.
What you are actually leaving
ChatGPT still has a Free plan. The live pricing page lists unlimited text chats with GPT-5.6 Luna, subject to abuse guardrails, and limited uploads, images, voice, deep research, memory and Codex. OpenAI’s own 16 January 2026 post put ChatGPT Go at $8 a month in the US and said that plan may include ads. Official help, updated this month, still prices Plus at $20 a month, billed monthly, with no annual option. Pro exists as a higher tier. The January post said $200 a month. The live pricing table I opened today did not print a dollar figure in the HTML, so I am not locking Pro to either $100 or $200 on this page.
Claude’s official pricing page: Free is $0. Pro is $17 a month if you pay $200 a year up front, or $20 if you pay monthly. Max starts at $100 a month. Official help matches the $20 monthly US figure and says Pro is at least five times the free usage per session, with a weekly cap on top. Claude Code and Cowork sit on Pro, not Free.
If you only use Free ChatGPT or Free Claude, you are not “escaping a $20 bill.” You are shopping for a different free box.
The three that earned their own pages
Gemini is Google’s assistant. Official subscriptions page: Free is $0 with a Google account. Google AI Plus is $4.99 a month — the cheapest official paid step I found among the big consumer assistants. Google AI Pro is $19.99 a month. Ultra starts at $99.99. That is a real ChatGPT-shaped product with a cheaper first upgrade.
DeepSeek’s homepage, today, offers “Chat Now — Free access to DeepSeek.” The chat product is advertised as free. The API is a different product with its own token prices. Do not mix them up.
Arena.ai is the one people keep filing under the wrong heading. It is a public model arena and an Agent Mode, not a single-vendor assistant with a Plus plan. The official homepage is explicit about privacy: prompts go to third-party providers and may be disclosed publicly. That page is written up separately, including the fact that this research was done in Arena Agent Mode.
Big names that are real, but a different job
Microsoft Copilot has a free chat at copilot.microsoft.com. Microsoft’s own support page separates that free Copilot from Copilot inside Microsoft 365. The free one is general Q&A and web tasks. The Office-embedded product is a different licence. I am not publishing “Copilot is free ChatGPT” as if Word and Excel came with the website.
Perplexity’s official pricing hub: Free is $0, search with citations, limited daily use. Pro is $20 a month. Max is $200 a month. That is a cited-research product that also routes across other companies’ models. At $20 it is not cheaper than ChatGPT Plus. The free tier is the interesting part, if what you want is sources, not a writing partner.
Claude itself is a ChatGPT alternative, and ChatGPT is a Claude alternative. Both have free tiers. Both charge $20 a month for the everyday paid plan. Switching from Plus to Pro Claude is a lateral move, not a cheaper one.
How I would choose, labelled as opinion
If I already live in Gmail and Drive and I want a $0 box, I would try Gemini Free before I opened a fourth account.
If I was about to pay $20 for Plus just to send more messages, I would look at ChatGPT Go at $8 US, or Google AI Plus at $4.99, and read the current inclusions — Go may carry ads — before I paid Plus.
If I wanted one vendor’s memory, custom GPTs and a stable app, I would stay on ChatGPT or Claude and stop shopping “alternatives.”
If I wanted to compare models on one prompt, I would use Arena and I would not paste anything I would not want a lab to see.
I have not run a week of paid work through DeepSeek or Gemini Plus for this piece. I am not going to invent quality scores.
Still in research
Grok is real. I did not get a current official consumer price I was willing to print as “cheap.” SuperGrok figures on third-party blogs are not a source.
Mistral’s public chat now presents as Vibe. I did not get a clean official free/paid table from that surface today, so there is no Mistral page.
Meta AI is free inside Facebook, Instagram and WhatsApp. That is a social assistant, not a ChatGPT work replacement. No page.
Poe, HuggingChat, Pi and Character.AI were not checked to the same standard. They stay off this list until they are.
Arena PLM at arenasolutions.com is a product-lifecycle tool from PTC. It is not this Arena. Do not confuse them.