
SpecialistDelivers commercially safe, professional image generation tools, but lacks community prompt sharing and open-source checkpoints.

chichi-pui records 9,091,626 monthly visits with +0.3% month-over-month growth and Paid pricing. Code Arena records 35,827,928 monthly visits with +19.4% growth and Free pricing.

Japan's AI art community for posting, generating and discovering AI images
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | chichi-pui.com | arena.ai |
| Pricing Model | Paid | Free |
| Monthly Visits | 9.09M (9,091,626) | 35.83M (35,827,928) |
| MoM Traffic Delta |
| +30.77K (+0.3%) |
| +5.83M (+19.4%) |
| Primary Market & Share | 🇯🇵 Japan (93.9%) | 🇮🇳 India (13.1%) |
|---|
| Direct Visits / mo | 5.39M | 24.34M |
|---|
| User Rating | 4.1 | 4.7 |
|---|
| Supported Platforms | Website | Website |
|---|

Japan's AI art community for posting, generating and discovering AI images
Upload and browse AI illustrations, photos and manga across illustration, photo and manga sections.
Every post can carry its prompt text, and visitors can search prompts by tag or by which model produced the image.
Generate images in the browser with Stable Diffusion, SDXL, NovelAI, niji-journey, FLUX and other supported models.
Fresh models are periodically opened through the UL generation feature for a limited period.

Battle-test AI coding models side by side
Send the same coding prompt to multiple leading models and compare their generated apps and logic side by side.
Watch models construct web apps and websites live, so you can see process and output, not just the final file.
Projects go beyond one-off snippets, testing how well a model structures components, routes, and styles together.
Track which coding models accumulate the most wins over time to identify consistently strong performers.

SpecialistDelivers commercially safe, professional image generation tools, but lacks community prompt sharing and open-source checkpoints.

Features comprehensive character model creation and image generation tools, but acts as a more commercial platform.

SpecialistProduces exceptionally high-aesthetic images via Discord or web, but lacks community model hosting and prompt sharing.
#3Free / Open-sourceOffers a vastly larger open-source model ecosystem and community, but lacks Chichi-pui's specific Japanese UI and focus.
SpecialistGenAI character hub for chatting, searching, and discovering AI personas
Provides robust in-browser AI generation and model sharing, though with a broader international creator community.
SpecialistProvides prompt browsing and remixing features with integrated generation canvases, but with a smaller community.
SpecialistFocuses on prompt search and discovery across multiple models rather than hosting an active art creation community.

Crowdsourced arena where AI models compete and humans crown the best design output

SpecialistOperates as a commercial marketplace for buying and selling prompts rather than an open social art community.

Agent Skills that give your coding agent real design taste
Free / Open-sourceSearch and study millions of public SKILL.md agent skills
SpecialistDelivers commercially safe, professional image generation tools, but lacks community prompt sharing and open-source checkpoints.
Features comprehensive character model creation and image generation tools, but acts as a more commercial platform.
SpecialistProduces exceptionally high-aesthetic images via Discord or web, but lacks community model hosting and prompt sharing.
SpecialistGenAI character hub for chatting, searching, and discovering AI personas
Provides robust in-browser AI generation and model sharing, though with a broader international creator community.
SpecialistProvides prompt browsing and remixing features with integrated generation canvases, but with a smaller community.
SpecialistFocuses on prompt search and discovery across multiple models rather than hosting an active art creation community.
Crowdsourced arena where AI models compete and humans crown the best design output
SpecialistOperates as a commercial marketplace for buying and selling prompts rather than an open social art community.
Agent Skills that give your coding agent real design taste
Free / Open-sourceSearch and study millions of public SKILL.md agent skills