Cheapest AI Tools Right Now: $0, $8, $9, $20 and Pay-Per-Token
The cheapest useful AI costs nothing: ChatGPT Free, Claude Free and Gemini Free are $0. The cheapest paid chat plan is ChatGPT Go at $8 a month, the cheapest writing tool is Rytr at $9, and the main subscriptions sit at $20. If you write code that calls a model, the API is cheaper still: Claude Haiku 5.5 lists at $0.10/$0.50 per 1M tokens on prompts up to 100K tokens ($0.50/$2.50 above), GPT-5.4 nano at $0.20/$1.25, DeepSeek V4.1 Flash at $0.30/$1.20 at peak and half that off-peak, and Gemini 3.5 Flash Lite at $0.30/$2.50. Our rule: stay free if you use AI a few times a day, buy one plan if you use it daily, and pay per token if you build.
By Aniruddh PanvalkarPricing verified Nov 5, 2026
Plans and Pricing
Free Tier — ChatGPT, Claude, Gemini
$0/monthAll three run current models with usage caps. ChatGPT Free gives capped access to OpenAI's current lineup, Claude Free runs Claude Sonnet 5 with daily limits, and Gemini Free runs in the Gemini app. Use one for a normal week of work before paying for anything; if the cap never stops you, you are done.
Best for
Casual users, students and anyone trying AI for the first time. Under five uses a day, one free tier is enough.
Not for
Daily professional use, where the caps will interrupt you. AI inside Gmail and Docs also needs Google AI Pro.
Cursor Free / GitHub Copilot Free
$0/monthGitHub Copilot Free gives 2,000 code completions a month in VS Code and JetBrains, plus a small AI credit allowance for chat that GitHub does not publish, so watch the usage meter. Cursor Free has a limited allowance of agent and chat requests and no third-party models. Between them, the cheapest way for a developer to start.
Best for
Hobbyist and part-time developers who want AI coding help without a subscription.
Not for
Professional developers coding all week; the free allowances run out mid-month.
DeepSeek V4.1 Flash (API)
$0.30 / 1M input, $1.20 / 1M output at peak, half off-peak ($6.30–$12.60/month in the example below)DeepSeek V4.1 Flash replaced V4 Flash; the API name is deepseek-flash. Off-peak it is the cheapest of the four APIs priced here. At peak, GPT-5.4 nano costs less on input-heavy work. DeepSeek V4 Pro ($1.32 / $3.96 at peak) covers harder reasoning and coding. You need an API key or a third-party app; the DeepSeek web chat is free.
Best for
RAG, classification and high-volume pipelines where near-flagship output at a small fraction of GPT-5.5 or Claude Sonnet 5 prices is the goal.
Not for
Non-technical users who need a ready-made app, and teams whose data-residency rules exclude China-hosted APIs.
Groq (Llama via API)
Under $2/month typicalFast inference on open models such as Llama 4 Scout and Llama 4 Maverick. Speed is the reason to pick Groq. Its per-token rates change, so check the vendor page before you budget.
Best for
Real-time products and anything where response speed matters more than top-end reasoning.
Not for
The hardest reasoning tasks; Llama 4 trails GPT-5.5 and Claude Opus 5 there.
Rytr
$9/monthThe cheapest writing tool with its own interface. It handles short-form copy such as social posts, product descriptions, ad copy and subject lines, under a monthly character cap. Check the current cap at rytr.me.
Best for
Budget content creators who write short pieces and want templates rather than a chat window.
Not for
Long-form blog writers or anyone producing in volume; the cap bites quickly.
Writesonic
$20/monthWritesonic at $20 covers articles, ad copy, email sequences and social copy on current frontier models. That is $29 a month less than Jasper Creator at $49. Verify current pricing at writesonic.com.
Best for
Freelancers and small content teams who want a full writing app without paying for Jasper.
Not for
Marketing teams that must enforce one brand voice across many writers; Jasper's brand-voice tooling is stronger.
ChatGPT Plus / Claude Pro / Google AI Pro
$20/month each ($19.99 for Google AI Pro)ChatGPT Plus (GPT-5.5 and GPT-5.4), Claude Pro (Claude Sonnet 5 and Opus 5) and Google AI Pro (Gemini 3.1 Pro plus Workspace). ChatGPT Go at $8 is the step below Plus. These are general assistants rather than writing tools, but they run the newest models, so the output usually beats dedicated writing apps.
Best for
Daily users who mix writing with research, coding or analysis. Claude Pro for prose; Google AI Pro if you live in Gmail and Docs.
Not for
Users who only need writing templates (Writesonic or Rytr) and developers, for whom the API is cheaper.
Subscription prices and API rates verified against the models.json catalogue on 11 September 2026. DeepSeek pricing checked 2026-10-27 at api-docs.deepseek.com. Claude Haiku 5.5 rates from Anthropic's pricing page, read 2026-11-03. Groq and Rytr limits change; verify on the vendor page before buying.
What is the cheapest AI tool that is still useful?
For chat: a free tier until its cap stops you, then ChatGPT Go at $8. The $20 plans earn their price only if you use AI daily and keep hitting free limits. For API work, price your own volume. One example: 1,000 requests a day at 1,000 input and 100 output tokens is 30M input and 3M output tokens a month. GPT-5.4 nano: $6.00 + $3.75 = $9.75. DeepSeek V4.1 Flash at peak: 30 × $0.30 + 3 × $1.20 = $12.60, or $6.30 off-peak. Gemini 3.5 Flash Lite: $9.00 + $7.50 = $16.50. Claude Haiku 5.5: 30 × $0.10 + 3 × $0.50 = $4.50. So Claude Haiku 5.5 is now the cheapest pick, at peak or off-peak, because each 1,000-token prompt is far under its 100K-token price step. Prompts over 100K tokens bill at $0.50/$2.50, five times as much. The $20 that pays for one chat plan buys about 5M input plus 1M output tokens of Claude Sonnet 5, or about 37M input plus 7.4M output tokens of DeepSeek V4.1 Flash at peak. DeepSeek has a second catch, hosting: its API is China-hosted, so pick GPT-5.4 nano or Gemini 3.5 Flash Lite if you need OpenAI or Google.
What users report
Budget users combine a cheap subscription with low-cost Chinese-model plans or pay-as-you-go APIs, but warn that bargain prices and capacity may not last.
Paraphrased from public posts, with the date and a link to each original. These are other people's accounts, not our tests, and we have not verified each one.
One user comparing providers found OpenCode Go, at $10/month ($5 for the first month), had the highest limits they saw, but did not expect that price to last.
Value · OpenCode Go · Hacker News, Apr 2026
One founder said they paired one Claude Pro subscription for planning with a z.ai coding plan costing about a fifth as much, which did the implementation work.
Value · Claude Pro + z.ai Coding Plan · Hacker News, Dec 2025
One user reported cancelling Z.ai over capacity problems, then seeing Alibaba Cloud raise its GLM coding plan to $50/month, "2.5x more expensive than ChatGPT Plus".
Billing · Z.ai / Alibaba Cloud GLM plan · Hacker News, Apr 2026
One user called Claude Pro at $20/month fine because they never reached the limit, but found DeepSeek's pay-as-you-go API much cheaper. The $2 they loaded in June was still unspent.
Switching · DeepSeek API vs Claude Pro · Hacker News, Jul 2026
Frequently Asked Questions
What is the cheapest AI subscription?
ChatGPT Go at $8 a month for chat, Cursor Plus at $8 for coding on Cursor's own models only, and Rytr at $9 for a dedicated writing tool. Most other plans start at $20: ChatGPT Plus, Claude Pro, Perplexity Pro and Writesonic, with Google AI Pro at $19.99.
Can I get good AI for under $5 a month?
Yes, through an API, at moderate volume. Half the example month above, 15M input and 1.5M output tokens, costs $2.25 on Claude Haiku 5.5 (15 × $0.10 + 1.5 × $0.50, with prompts under 100K tokens), $4.88 on GPT-5.4 nano ($0.20/$1.25 per 1M) and $6.30 on DeepSeek V4.1 Flash ($0.30/$1.20 at peak), or $3.15 off-peak. Gemini 3.5 Flash Lite ($0.30/$2.50) is the Google option. The hidden cost is setup: every one needs an API key and a client app.
Is free AI good enough for professional work?
Often, yes. If you use AI fewer than five to ten times a day, free tiers on current models are enough. Paid tiers mainly buy higher limits, priority and extra features, not a different class of model.
What is the cheapest dedicated AI writing tool?
Rytr at $9 a month. Writesonic at $20 is the better buy if you write in volume. Both run on the same frontier models as Jasper, which charges $49 a month for Creator.
Is Writesonic cheaper than Jasper?
Yes, by $29 a month: $20 against $49 for Jasper Creator. The extra pays for Jasper's brand-voice templates and team features, not better model output.
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