Mammouth vs NanoGPT
We give Mammouth a 2.6 GPA and NanoGPT a 3.4, out of 4.0. NanoGPT grades higher on value for money and the free plan. They get the same grade on features, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Mammouth
One subscription for GPT, Claude, Gemini and other AI models
NanoGPT
Pay-as-you-go access to hundreds of AI models on the web and by API
How we grade them
| 2.6GPAMammouthGood | 3.4GPANanoGPTVery good | |
|---|---|---|
| Value for money | BStarter is $10 a month if you pay for the year, or $12 monthly. That's about the going rate for an AI assistant, and here it covers models from several makers at once. Usage is rationed though, with quotas that renew every 3 hours, and the dollar prices leave out VAT. | ANo subscription needed: top up from $1 and pay per use, with text models billed at the provider's list price and no markup. Pro is $12 a month for 60 million input tokens a week on its included models. If you only chat now and then, that beats a flat monthly plan. |
| Free plan and trial | FNothing is free. There's no free plan, and the pricing page lists no trial either, so finding out whether you like it costs at least one month at $12. | BPay As You Go is $0 a month and comes with one free model, on the web only. Every other model is billed from a prepaid balance. So it's a taster more than a plan to live on. |
| Features | AText models from OpenAI, Anthropic, Google, Mistral, xAI and DeepSeek, web and deep research, image, video and music generators, voice chat, and custom assistants that keep your instructions and files. Every plan includes API credits and a coding tool too. | AThe directory lists 641 text models, 224 image, 183 video, 98 audio and 13 3D, all from one chat window and one balance. The API follows OpenAI's and Anthropic's formats and covers images, video, audio, embeddings and web search too. |
| Ease of use | BIt opens in a browser, and resending a prompt to another model is one click. There's no App Store app, so we have no rating on record to show how people get on with it. That stops it at a B. | BOpen the site and start typing. You can even do it in an anonymous session with no account. Thinking in tokens and topping up a balance takes some getting used to, though, and there's no rating on record to go by, so a B. |
| Platforms and integrations | BWeb and an Android app, with connectors for Microsoft 365, GitHub, Notion and Atlassian, and an API. But it isn't in the App Store: on iPhone, Mac and Windows you install it from the browser as a web app. | BA website with a broad API, and that's it. The pricing page mentions no desktop or phone apps, and no integrations are listed. |
| Best for | GPT, Claude and Gemini on one bill | paying per message instead of per month |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Mammouth and NanoGPT. How we grade
Where they differ
- Mammouth starts at $10 per month, billed yearly ($120), or $12 billed monthly. NanoGPT starts at $12 per month (Pro), or pay as you go at model list prices.
- NanoGPT has a free plan. Mammouth does not.
- Only Mammouth lists an Android app.
- Mammouth also covers dictation.
At a glance
| Mammouth | NanoGPT | |
|---|---|---|
| Pricing | Paid | Free plan |
| Starts at | $10 per month, billed yearly ($120), or $12 billed monthly | $12 per month (Pro), or pay as you go at model list prices |
| Free plan | None | Pay As You Go costs $0 a month and includes one free model, on the web only. Every other model is billed per use from a prepaid balance. |
| Free trial | None listed | None listed |
| Web | ||
| Android | ||
| Made by | Mammouth AI SAS | NanoGPT LLC |
| Price read from | mammouth.ai | nano-gpt.com |
| Checked | Oct 6, 2026 | Oct 9, 2026 |
Who each one suits
Mammouth
- People who want GPT, Claude, Gemini and other models on one bill
- Comparing answers from several models on the same prompt
- European teams that want GDPR-aligned processing and central billing
NanoGPT
- Occasional users who would rather pay per message than subscribe
- Developers who want one API key for many model providers
- People who want to pay with cryptocurrency or without an account
Worth knowing
Mammouth
- There is no free plan, and the pricing page lists no free trial.
- Usage is limited per session and quotas renew after 3 hours. At a model's limit Mammouth switches to a lighter model.
- There is no App Store app: on iPhone, Mac and Windows it installs from the browser as a web app. Android has a Play Store listing.
- Prices are shown in euros or US dollars depending on the visitor's country, and dollar prices exclude VAT. Paying by bank transfer needs an annual commitment.
NanoGPT
- The free allowance is a single model on the web; everything else needs a prepaid balance or the Pro plan.
- Pro's weekly allowance covers only the models included in the subscription; others, such as Claude Opus 5.5, are still billed per use.
- Pinning a specific provider by hand adds 5%, and bring-your-own-key requests are billed at 5% of the normal model cost.
- Access is through the website and the API; the pricing page mentions no desktop or mobile apps.
Key features
Mammouth
- Many models in one subscription
- One plan covers text models from OpenAI, Anthropic, Google, Mistral, xAI, DeepSeek and others, with Perplexity for web and deep research. The default model in each category can be reordered.
- One-click reprompting
- Send a prompt, along with the conversation history, to another model to compare or complement the answer without retyping it or opening a new chat.
- Image, video and music generation
- Image models include Nano Banana, GPT Image, FLUX, Recraft and Stable Diffusion. Video runs on Veo, Kling and Grok Imagine, and music on Lyria.
- Custom mammouths
- Custom assistants keep instructions and files for reuse across conversations. In a team they can be shared with read-only or edit access while conversations stay private.
- Voice chat, dictation and read-aloud
- Hold a real-time voice conversation and get a transcript afterwards, dictate a message as text, or have any answer read out with text-to-speech.
- Connectors, API and Mammouth Code
- MCP connectors link Microsoft 365, GitHub, Notion, Atlassian or a custom server to the chat. Every plan includes monthly API credits and the Mammouth Code tool for developers.
NanoGPT
- Hundreds of models in one place
- The model directory lists 641 text, 224 image, 183 video, 98 audio and 13 3D models, including ChatGPT, Claude and Gemini, all used from one chat interface and one balance.
- Per-use billing at list prices
- Text models are billed at the provider's list price per million tokens with no markup, and deposits carry no percentage fee. Each API response reports the exact cost charged.
- OpenAI-compatible API
- The API follows OpenAI's chat completions and Responses formats and Anthropic's Messages format, and also covers images, video, audio, embeddings, web search and batch jobs.
- No stored prompts by default
- Prompt and conversation content is not kept on NanoGPT's servers unless you turn on sync or sharing, and the service can be used in an anonymous session with no account.
- Card and crypto payments
- A balance can be started from $1 by card or $0.10 in cryptocurrency. Selected API endpoints also accept accountless crypto payments with no API key.
- TEE-backed models
- Some models run in trusted execution environments, and the API returns attestation reports and request signatures so that this can be verified.
Plans
Mammouth
Starter$10
per month, billed yearly ($120); $12 billed monthly, excl. VAT
For regular use: all text, image and video models, web and deep research, projects, voice chat and $2 of API credits. A lighter model stays available at the limit.
Standard$20
per month, billed yearly ($240); $24 billed monthly, excl. VAT
For intensive use: the same features with 3 times the usage of Starter and $4 of API credits.
Expert$60
per month, billed yearly ($720); $72 billed monthly, excl. VAT
For maximum use: the same features with 10 times the usage of Starter and $10 of API credits.
Team$10
per user / month, billed yearly; $12 billed monthly
The same per-user prices as the individual plans, which can be mixed, with an admin console for licences, centralized billing and shared projects.
EnterpriseCustom
For more than 100 licences: onboarding, SSO and flexible payment options such as wire transfer, by quote.
NanoGPT
Pay As You Go$0
Every text, image, video and voice model on web and API, billed per use from a balance topped up from $1 by card or $0.10 in crypto. One free model on the web.
Pro$12
per month
60 million included input tokens a week on the subscription's text models, 100 images a day, and 5% off eligible paid text models, on web and API.
Ways to pay less
Mammouth
- Annual discount
About 17% off with yearly billing
Paying yearly lowers Starter from $12 to $10 a month ($120 billed in advance), Standard from $24 to $20 and Expert from $72 to $60.
NanoGPT
- Other savings
Volume pricing for large users
NanoGPT invites large users of its platform or API to get in touch for custom pricing and dedicated support.
