Skip to content
SPECIFICTION
Get listed

HammerAI

hammerai.com

From $9/mo Free plan WebWindowsmacOSLinuxiOSAndroid
Visit hammerai.com
Spec score 9.2 #4 of 46 in AI Roleplay Chatbots

What it is

HammerAI is an AI character chat and roleplay platform for chatting with characters, writing stories, generating images, and creating group chats, lorebooks, and personas. It is available on the web, Android, iOS, Linux, macOS, and Windows. Its desktop app runs local models through Ollama, supports 20+ LLMs, and can use an Ollama Modelfile. After models are downloaded, local-model use works offline; cloud LLMs, image generation, and text-to-speech need an internet connection. Mobile apps store chats and characters on-device by default. HammerAI says it does not collect information about conversations or use user content to train or fine-tune its models, though third-party AI providers may process or retain messages sent to them. The free plan includes 600 cloud messages per day. Paid subscriptions start at $9 a month, and unused subscription credits expire at the end of each billing period. The service is for people at least 18 or the local age of consent, whichever is greater, and filters content including self-harm encouragement, graphic violence, and hate speech.

Spec sheet

What it does
HammerAI provides AI character roleplay, interactive story writing, image generation and text-to-speech.Read 15 Oct 2026 · hammerai.com
Product
HammerAI describes itself as an AI character chat and roleplay platform.Read 29 Sep 2026 · hammerai.com
Integrations
The desktop app is powered by Ollama and Llama.cpp, and the FAQ says cloud AI providers can include those accessed through OpenRouter.Read 29 Sep 2026 · hammerai.com
Privacy
The privacy policy says HammerAI does not collect information about conversations, while third-party AI providers may process or retain messages sent to them.Read 29 Sep 2026 · hammerai.com
Support
Users can submit feedback in-app or contact HammerAI through Discord, Twitter, Reddit, and TikTok.Read 29 Sep 2026 · hammerai.com
Age and moderation
HammerAI says its service is for users at least 18 or the local age of consent, whichever is greater, and that it filters content including self-harm encouragement, graphic violence, and hate speech.Read 29 Sep 2026 · hammerai.com
Age restriction
HammerAI states that its services are intended for adults aged 18 and over.Read 15 Oct 2026 · hammerai.com
Billing limit
The pricing page says unused subscription credits expire at the end of each billing period and do not roll over.Read 29 Sep 2026 · hammerai.com
Browser local execution
Web local-model use requires a WebGPU-capable browser such as Chrome, Edge or Opera.Read 15 Oct 2026 · hammerai.com
Character library
Users can browse community characters, create their own characters and keep creations private or publish them.Read 15 Oct 2026 · play.google.com
Company headquarters
The Google Play listing gives Sunspot LLC's address as 1209 Mountain Road Pl NE 6680, Albuquerque, New Mexico 87110-7825, United States.Read 15 Oct 2026 · play.google.com
Company legal name
The Apple App Store identifies the seller as Sunspot LLC.Read 15 Oct 2026 · apps.apple.com
Company size and funding
The App Store description says HammerAI is built by one developer with a small contracting team and no venture capital.Read 15 Oct 2026 · apps.apple.com
Desktop platforms
The desktop download page lists macOS Apple Silicon, Windows, and Linux packages for Debian, Flatpak, and RPM.Read 29 Sep 2026 · hammerai.com
Documentation depth
Official docs cover installation, Ollama, Linux, vision models, characters, chat, lorebooks, personas, stories, image generation, quantization, proxy models and model parameters.Read 15 Oct 2026 · hammerai.com
External model integrations
Proxy mode allows API-key connections to external model providers, including OpenRouter and Featherless.Read 15 Oct 2026 · dreamgen.com
Features
The site says users can chat with characters, write stories, generate images, group chat, and build lorebooks and personas.Read 29 Sep 2026 · hammerai.com
Free-tier advertising
Free-tier advertising can send limited recent chat content to Elo to select relevant ads; paid plans remove those ads and sharing.Read 15 Oct 2026 · hammerai.com
Group chats
The service supports conversations with up to ten characters simultaneously.Read 15 Oct 2026 · hammerai.com
Image generation
Image generation works inside chats and as standalone images with prompt, seed and aspect-ratio controls; local image generation is planned rather than available.Read 15 Oct 2026 · hammerai.com
Image-provider integrations
Release notes list image-provider support for X.ai, OpenAI, Pollinations, StabilityAI, NanoGPT Image, TogetherAI, DeepInfra and FireworksAI.Read 15 Oct 2026 · hammerai.com
Limit: Android availability
AppBrain states that the HammerAI Android app was removed from Google Play on August 10, 2026 after about 11,000 installs.Read 15 Oct 2026 · appbrain.com
Limit: Android payment and stability complaints
AppBrain user reviews report subscription entitlements not appearing, Google sign-in failures, frozen chats and weak free-tier responses.Read 15 Oct 2026 · appbrain.com
Limit: interface reliability
DreamGen found the Continue control failed, chat settings could not be collapsed and multiple chats with one character were unavailable.Read 15 Oct 2026 · dreamgen.com
Limit: synchronization
DreamGen reported that cross-device chat syncing can fail when browser local storage is not synchronized.Read 15 Oct 2026 · dreamgen.com
Linux update limitation
Linux packages do not receive automatic future updates and must be updated manually.Read 15 Oct 2026 · hammerai.com
Local models
The desktop app runs large language models locally through Ollama, keeping processing on the user's computer.Read 15 Oct 2026 · hammerai.com
Lorebooks
Lorebooks provide dynamic memory for world facts and story context.Read 15 Oct 2026 · hammerai.com
Mobile
HammerAI offers mobile apps for iOS and Android, and says chats and characters are stored on-device by default.Read 29 Sep 2026 · hammerai.com
Notable news
Release notes dated July 18, 2026 announce local Piper or Kokoro text-to-speech and new image-generation providers.Read 15 Oct 2026 · hammerai.com
Offline use
The desktop app works offline with local models after models are downloaded; cloud LLMs, image generation, and text-to-speech require internet access.Read 29 Sep 2026 · hammerai.com
Personas
Users can define personas that characters use to understand who they are talking with.Read 15 Oct 2026 · apps.apple.com
Praise: privacy and local use
ToolPilot highlights local processing, no sign-in and privacy as core strengths.Read 15 Oct 2026 · toolpilot.ai
Praise: roleplay quality
DreamGen reviewers reported strong character consistency, dynamic prose, useful model controls and good image results.Read 15 Oct 2026 · dreamgen.com
Privacy promise
HammerAI says it does not use conversations, characters or stories to train its own AI models.Read 15 Oct 2026 · hammerai.com
Public API
ToolPilot lists HammerAI's API as unavailable, although the product can connect to external model APIs through proxy configuration.Read 15 Oct 2026 · toolpilot.ai
Rating on Apple App Store
3.2 out of 5 from 17 ratingsRead 15 Oct 2026 · apps.apple.com
Rating on Google Play historical listing
3.55 out of 5 from 60 ratingsRead 15 Oct 2026 · appbrain.com
Rating on ToolPilot
2.5 out of 5 from 4 reviewsRead 15 Oct 2026 · toolpilot.ai
SDK and extensibility
The documented extension path is model-provider proxy configuration and importing or modifying character JSON files; no HammerAI SDK is documented.Read 15 Oct 2026 · dreamgen.com
Security statement
The privacy policy says HammerAI uses industry-standard security practices but cannot guarantee absolute security.Read 15 Oct 2026 · hammerai.com
Text to speech
Paid tiers provide cloud text-to-speech with 746 voices across 34 languages, while desktop also supports local Piper or Kokoro TTS.Read 15 Oct 2026 · hammerai.com
Third-party data risk
Cloud conversations are sent to third-party AI providers such as OpenRouter, which may retain or use messages under their own policies.Read 15 Oct 2026 · hammerai.com
Trademark first use
A United States trademark filing for HAMMERAI lists first use anywhere and first use in commerce as December 3, 2023, with Sunspot LLC as applicant.Read 15 Oct 2026 · trademarks.justia.com
Training
HammerAI says it does not use user data or conversations, characters, stories, and other content to train or fine-tune its AI models.Read 29 Sep 2026 · hammerai.com
Uninstaller limitation
The desktop app has no official uninstaller; Windows removal requires manually deleting its Local and Roaming directories.Read 15 Oct 2026 · hammerai.com
Vision models
Desktop vision-model support lets users send PNG or JPG images to compatible Ollama models such as llava:7b.Read 15 Oct 2026 · hammerai.com
Windows installation limitation
Windows installers may show a security warning because HammerAI uses a private code-signing certificate rather than an officially signed certificate.Read 15 Oct 2026 · hammerai.com

Plans and prices

Free Free 600 cloud messages/day · 8,192-token context · 2 cloud LLMs · local LLM access Read 15 Oct 2026 · hammerai.com
Tiny credit pack $1.99, paid once $1.99 200 credits · 20 images or 40 TTS generations · credits do not expire Read 15 Oct 2026 · hammerai.com
Small credit pack $4.99, paid once $4.99 600 credits · 60 images or 120 TTS generations · credits do not expire Read 15 Oct 2026 · hammerai.com
Starter $9 a month $9 / month Unlimited cloud messages · 16,384-token context · 4 cloud LLMs · 1,500 credits/month · 26 image models · 746 voices · 34 languages Read 15 Oct 2026 · hammerai.com
Medium credit pack $9.99, paid once $9.99 1,300 credits · 130 images or 260 TTS generations · credits do not expire Read 15 Oct 2026 · hammerai.com
Advanced $18 a month $18 / month Unlimited cloud messages · 32,768-token context · 7 cloud LLMs · 3,500 credits/month · 26 image models · 746 voices · 34 languages Read 15 Oct 2026 · hammerai.com
Large credit pack $19.99, paid once $19.99 3,000 credits · 300 images or 600 TTS generations · credits do not expire Read 15 Oct 2026 · hammerai.com
Ultimate $35 a month $35 / month Unlimited cloud messages · 65,536-token context · 14 cloud LLMs · 9,000 credits/month · 26 image models · 746 voices · 34 languages Read 15 Oct 2026 · hammerai.com
Mega credit pack $49.99, paid once $49.99 8,500 credits · 850 images or 1,700 TTS generations · credits do not expire Read 15 Oct 2026 · hammerai.com
Ultra credit pack $99.99, paid once $99.99 20,000 credits · 2,000 images or 4,000 TTS generations · credits do not expire Read 15 Oct 2026 · hammerai.com

Every HammerAI plan and price →

Strong points and limits

Strong points

  • Free plan includes 600 cloud messages per day.
  • Desktop app supports 20+ LLMs through Ollama.
  • Downloaded local models can work offline.
  • Mobile apps store chats and characters on-device by default.
  • HammerAI says it does not use user content for model training.

Limits

  • Cloud LLMs, image generation, and text-to-speech need internet.
  • Unused subscription credits expire each billing period.
  • Service is limited to users meeting its age threshold.
  • Third-party AI providers may process or retain messages.

Who it suits

HammerAI suits adults interested in character chat, roleplay, or story creation across web, desktop, and mobile. Desktop users who want offline use can run local models after downloading them.

HammerAI in depth

Read the full write-up

Overview

HammerAI pairs character roleplay with tools for story creation, images, group chats, lorebooks, and personas. It suits readers who want several creative tools in one place or want to run models locally on desktop; the main trade-off is that cloud features depend on an internet connection and subscription credits expire each billing period.

Key features

Character conversations sit alongside story writing and group chat, while lorebooks and personas provide tools for shaping fictional settings and characters. Image generation adds a visual option, but it is one of the uses drawing on credits for paid subscribers. Persistent memory is supported, though its operation is not detailed.

The desktop app runs local models through Ollama and Llama.cpp. Ollama support covers more than 20 LLMs, and users can bring an Ollama Modelfile. After downloading models, local-model use works offline; cloud LLMs, image generation, and text-to-speech require internet access. This makes HammerAI a stronger fit for users prepared to manage local models than for anyone expecting every feature to work offline.

HammerAI says it does not collect information about conversations or use user content to train or fine-tune its models. Third-party AI providers may process or retain messages sent to them, so users choosing cloud services should account for that distinction. Chats and characters are stored on-device by default in the iOS and Android apps. The service is for users at least 18 or the local age of consent, whichever is greater, and filters content including self-harm encouragement, graphic violence, and hate speech.

Pricing

The free plan costs nothing and allows 600 cloud messages per day, an 8,192-token context, two cloud LLMs, local LLMs, and an LLM API proxy. It is a substantial way to try the service, but daily cloud-message limits and the smaller context and model selection make it less suited to sustained cloud use than paid plans.

Subscriptions add unlimited cloud messages and expand context and cloud-model access, as well as a monthly credit allowance:

Starter — $9 a month: 1,500 credits/month, enough for 150 images or 300 TTS, a 16,384-token context, and four cloud LLMs. It fits regular users who want fewer message constraints without the larger allowances.

Advanced — $18 a month: 3,500 credits/month, or 350 images or 700 TTS, a 32,768-token context, and seven cloud LLMs. It suits heavier creative use and longer context needs.

Ultimate — $35 a month: 9,000 credits/month, or 900 images or 1,800 TTS, a 65,536-token context, and 14 cloud LLMs. This is the choice for users who will make regular use of the larger credit and model allowances.

Monthly subscription credits expire at the end of each billing period and do not roll over, so a larger tier is worthwhile only if its allowance matches actual use. One-time credit packs preserve a different kind of flexibility: Tiny costs $1.99, paid once for 200 credits (20 images or 40 TTS); Small is $4.99, paid once for 600 credits (60 images or 120 TTS); Medium is $9.99, paid once for 1,300 credits (130 images or 260 TTS); Large is $19.99, paid once for 3,000 credits (300 images or 600 TTS); Mega is $49.99, paid once for 8,500 credits (850 images or 1,700 TTS); and Ultra is $99.99, paid once for 20,000 credits (2,000 images or 4,000 TTS). Purchased credits never expire. These packs suit occasional image or speech generation better than a subscription, but they do not provide the subscriptions' expanded context and cloud-LLM allowances.

Platforms

HammerAI is available on Android, iOS, Linux, macOS, web, and Windows. Desktop downloads include macOS Apple Silicon, Windows, and Linux packages for Debian, Flatpak, and RPM. The desktop app is the route for local-model support; mobile apps are available on both major mobile platforms and store chats and characters on-device by default.

Who it's for

Choose HammerAI if character roleplay is only part of the job and you also want story tools, group chat, and world-building features, or if local models and offline desktop use matter. It is less compelling if you need image generation, text-to-speech, or cloud AI to work offline, or if expiring monthly credits would not fit your usage pattern.

Pros and cons

Pro: Local models work offline after download, giving desktop users an alternative to cloud services.

Pro: A free plan combines 600 daily cloud messages with local LLMs and an API proxy.

Pro: Purchased credit packs never expire, a useful fit for intermittent image or TTS use.

Con: Subscription credits expire monthly, so unused allowance is lost rather than carried forward.

Con: Cloud AI, image generation, and TTS need internet access, limiting offline use to local models.

Con: Cloud providers may process or retain messages, unlike HammerAI's stated approach to conversation data.

Alternatives

For a broader comparison, see AI Roleplay Chatbots.

Nastia is worth considering if its free uncensored chat and daily token limits suit you, or if its $15.99 a month Unlimited plan fits better. Pick SillyTavern if a free, open-source option across desktop, web, and self-hosted platforms is the priority. VerseRP may suit readers looking for a free plan with unlimited Verse Free messages, full access to characters and creator tools, and 50 successful Verse Echo replies per UTC day.

Backyard AI offers a free plan with 300 messages per week, one included model, and 16k max memory; consider it if those limits match your needs. CrushOn.AI gives free users unlimited chats on free AI models, 100 monthly Pro Model credits, and 20 daily Inspiration Replies, making it an option for readers who value those specific allowances. Plotto may be a fit for basic story-room chat without a message fee or limit, though other actions may cost coins or require payment.

Talkie is another freemium alternative. Rubii may suit readers drawn to its Plus plan, which includes 800 Rubies, a stated estimate of about 1,600 messages or 400 images, and a 200 Plus daily free quota.

Verdict

HammerAI is a strong choice for character-chat readers who also want creative world-building tools and the option to run local models on desktop. Its free daily cloud allowance and offline local use give it a practical starting point; choose another service if cloud features must work offline or if monthly credit expiry makes subscriptions a poor match.

Verdict

HammerAI offers character and story tools alongside local-model support on desktop and mobile apps. Consider the internet requirements for cloud features and the expiry of subscription credits when choosing a plan.

Where Specifiction places it

Alternatives to HammerAIAll alternatives →