A small budget covers more than chat. Here's what the cheapest tier in each category actually gets you — and where a free plan is the smarter buy.
Under 10 dollars, pay for the one tool you use most: Google AI Plus ($4.99/mo) for a chat assistant, Poe Starter ($4.99/mo) if you'd rather sample many models, and c.ai+ ($9.99/mo) for companion chat. Gamma Plus fits for decks only on annual billing, and for meeting notes Fathom costs nothing at all.
| App | Free tier | Paid from | Top plan | Best for |
|---|---|---|---|---|
| Gemini | Yes | $4.99/mo | $99.99–199.99/mo | Google ecosystem users, video generation, very long documents (1M tokens) |
| ChatGPT | Yes | $8/mo | $500/mo | Everyday writing, brainstorming, image generation, casual coding |
| Poe | Yes | $4.99/mo | $249.99/mo | Power users who want to compare GPT, Claude, Gemini and niche bots without juggling separate subscriptions |
| Gamma | Yes | $9/mo | $90/mo | Fast first-draft presentations and one-page sites without opening a design tool |
| Mistral Vibe | Yes | $14.99/mo | $24.99/mo | Users who want a privacy-conscious European alternative to ChatGPT/Claude with all-day agentic coding built in |
| Character.AI | Yes | $4.99/mo | $9.99/mo | Roleplay, fandom chat, and companion-style conversation with persistent characters |
| Fathom | Yes | $20/mo | $34/mo | Sales call review, CRM-synced recaps, hiring interview notes |
Monthly prices in US dollars before tax, from each vendor's official pricing (US list price; weekly-billed plans converted to a monthly figure). Updated October 7, 2026
The most chat assistant per dollar at this price: Gemini's usage doubles, Gemini 3.1 Pro opens up in limited form, and up to 5 family members can share the plan and its 400 GB, which cuts the per-person cost.
Pick it if: you want a capable general assistant for the lowest paid price.
Full Gemini pricing →Go unlocks memory, projects and more image generation than Free on top of unlimited GPT-5.6 Luna chats, for $8/mo.
Pick it if: you're already used to ChatGPT and want fewer limits.
Full ChatGPT pricing →Starter's 10,000 points a day go a long way on lighter models and open up 100+ bots, though points vary by model and big ones drain them fast.
Pick it if: you like switching between models for different jobs.
Full Poe pricing →Plus gives 1,000 AI credits a month, up to 20 slides per prompt, and removes Gamma branding, for $9/mo whether billed monthly or annually.
Pick it if: you turn notes into decks or one-page sites regularly.
Full Gamma pricing →The Education plan gives Pro-level limits, including agentic coding, for $5.99/mo — but only for verified students and for up to 12 months.
Pick it if: you're a student and can verify with your school.
Full Mistral Vibe pricing →c.ai+ at $9.99/mo is ad-free with unlimited swipes and voice calls; the free tier now spends Charms on extra swipes.
Pick it if: character roleplay is what you actually use AI for.
Full Character.AI pricing →Unlimited recordings, transcriptions and instant AI summaries on the free plan, where Otter's free tier stops at 300 minutes a month.
Pick it if: you just need call notes and don't want to spend anything.
Full Fathom pricing →Notion's Plus plan ($10/mo) looks like a budget AI option but only includes the same capped AI trial as Free; full Notion AI needs Business. Character.AI's new lite tier starting at $4.99/mo still has ads and caps premium chat styles. Check what a cheap plan removes before assuming it's a smaller version of the real thing.
Before spending anything, check what's already free: everyday text chat never runs out in ChatGPT Free or DeepSeek, and NotebookLM's free plan handles most study use. With under 10 dollars a month to spend, put it toward the one limit you actually keep hitting.
For most people Google AI Plus at $4.99/mo, mainly because it doubles Gemini's free usage and one plan covers the whole family. If you're set on ChatGPT, Go at $8/mo is the pick.
No — Claude's only paid entry plan is Claude Pro at $20/mo. Claude Free is the option on this budget, with limited daily usage.
How we choose: prices come from each vendor's official pricing page and are re-checked every week. We take no affiliate fees, so rankings aren't for sale.