AI companions and characters
HammerAI: review, pricing, data and alternatives
HammerAI is for people who want to chat with custom characters or write interactive stories. It supports conversations with multiple characters, image generation, speech synthesis, and running models on a computer. A free tier exists; the first paid plan costs $1.99 pay as you go. Access and transparency score: 58/100, #1 of 5 in its category.
| Access | 25/30 | |
|---|---|---|
| Openness | 10/30 | |
| Trust | 23/40 |
What is HammerAI?
HammerAI is for people who want to chat with custom characters or write interactive stories. It supports conversations with multiple characters, image generation, speech synthesis, and running models on a computer.
According to its documentation, HammerAI lets you:
- chat with custom characters
- write interactive stories
- run models on your computer
- generate images
- make characters speak through speech synthesis
- bring multiple characters together in a conversation
We file it under AI companions and characters, the category of tools to chat with virtual characters, and it also overlaps with local LLM tools and creative writing and scripts. The category lists 5 verified tools on this site.
The publisher is Sunspot LLC, based in United States. The service launched in 2023, which gives it some track record.
Who is it for?
It is for anyone who wants to chat with virtual characters.
HammerAI is a good candidate if:
- you want to try before paying
- you also work from your phone
The best test is a concrete case from your daily work: if the tool does not beat your current method within a week, move on to an alternative.
How much does HammerAI cost?
Pricing model: freemium (limited free use, then paid). A free plan is offered, usually limited in volume or features.
The first paid plan costs $1.99 pay as you go (Tiny pack of 200 credits; Starter subscription at USD 9 per month), according to the pricing page, checked on October 24, 2026.
To estimate what the same work would cost done directly with an AI model, use our API price calculator. Prices change often: always check the official site before subscribing.
Data and privacy
The publisher does not clearly state where data is hosted. Assume your content may leave your region.
For professional use, check that a data processing agreement (DPA) is offered, and do not send customers' personal data or confidential documents without one.
Exporting your content: yes (details on the official site). Being able to get your data back makes switching tools easier later.
Three habits apply to every AI tool:
- turn off the use of your content for training if the option exists
- use a work account separate from your personal account
- review everything the tool produces before publishing or sending it
Platforms, languages and API
HammerAI runs on: web browser, Windows, macOS, Linux, iPhone and iPad, and Android.
Interface languages: English.
API availability is not documented.
How we scored it
Our 58/100 score does not judge output quality: it measures what can be publicly verified about access to the tool, its openness and how far the publisher can be trusted.
| Criterion | Points | What counts |
|---|---|---|
| Access | 25/30 | free tier, published price, French interface |
| Openness | 10/30 | API, data export, open code |
| Trust | 23/40 | identified publisher, declared hosting, age, presence in reference lists |
The full calculation is explained on our method page.
Comparison with alternatives
HammerAI against other tools in the aI companions and characters category:
| Tool | Free | Entry price | API | Score |
|---|---|---|---|---|
| HammerAI | Yes | $1.99 pay as you go | – | 58 |
| Character.AI | Yes | $4.99 per month | – | 56 |
| Replika | Yes | not published | – | 50 |
| Pi | Yes | not published | – | 48 |
| DoaCam | Yes | not published | – | 28 |
Verdict
HammerAI is among the most accessible and transparent tools in its category.
Strengths
- Free tier to try it
- Established since 2023
- Available on many platforms
Limitations
- Data hosting not disclosed
Avoid if…
- You handle sensitive personal data without a processing agreement
Alternatives
- Character.AIfree tier
- Replikafree tier
- Pifree tier
- DoaCamfree tier
Categories and jobs
Learn more
Frequently asked questions
Is HammerAI free?
Yes, a free plan exists, with usage limits. The first paid plan costs $1.99 pay as you go.
Where is HammerAI data stored?
The publisher does not clearly say so in its public documentation.
Does HammerAI have an API?
It is not documented.
What are the alternatives to HammerAI?
In the same category: Character.AI, Replika, Pi, and DoaCam.
HammerAI or Character.AI: which one to choose?
HammerAI starts at $1.99 pay as you go, Character.AI at $4.99 per month and our score is 58/100 for HammerAI and 56/100 for Character.AI. Try both on the same task before paying.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score