Two AIs. One prompt. Best answer wins.
Race responses side-by-side and pick the winner. Nia learns your preferences over time.
One workspace for thinking, writing and shipping. Spaces with memory. A voice mode that listens. Side-by-side battles to settle the model debate forever.
Race responses side-by-side and pick the winner. Nia learns your preferences over time.
Realtime back-and-forth, with a translator mode for 41 languages. Press space to talk.
Drop in PDFs, docs and URLs. Set instructions. Nia stays focused — no contamination from other chats.
Every assistant turn can branch into alternate timelines you can review side-by-side.
Nia writes alongside you in a real editor. Export to MDX, PDF, PNG, JSON.
Streaming, tools, structured outputs, vision and audio — all from a single endpoint.
Learn more →“Nia replaced 4 different AI tools for me. Battle Mode alone is worth it — I settle model debates in seconds instead of tab-switching all day.”
“The voice mode is insane. I dictate rough ideas, Nia cleans them up in real-time. My writing speed doubled.”
“Spaces changed how I manage client projects. Each client gets their own memory context — no cross-contamination. Game changer.”
“Finally an AI chat that remembers context across sessions. I set up a coding space once and it just knows my stack, my style, everything.”
“The branching feature is brilliant. I fork replies to explore different design directions and compare side-by-side. Nothing else does this.”
“I use Nia for everything — homework, research, code reviews. The free tier is generous and it actually feels faster than ChatGPT.”
“We switched our entire team from Claude + GPT subscriptions to Nia. The multi-model routing means we always get the best answer, automatically.”
“Artifacts are a killer feature. I ask for a chart, it generates a live interactive one I can tweak and export to PNG. No more screenshotting.”
“Nia replaced 4 different AI tools for me. Battle Mode alone is worth it — I settle model debates in seconds instead of tab-switching all day.”
“The voice mode is insane. I dictate rough ideas, Nia cleans them up in real-time. My writing speed doubled.”
“Spaces changed how I manage client projects. Each client gets their own memory context — no cross-contamination. Game changer.”
“Finally an AI chat that remembers context across sessions. I set up a coding space once and it just knows my stack, my style, everything.”
“The branching feature is brilliant. I fork replies to explore different design directions and compare side-by-side. Nothing else does this.”
“I use Nia for everything — homework, research, code reviews. The free tier is generous and it actually feels faster than ChatGPT.”
“We switched our entire team from Claude + GPT subscriptions to Nia. The multi-model routing means we always get the best answer, automatically.”
“Artifacts are a killer feature. I ask for a chart, it generates a live interactive one I can tweak and export to PNG. No more screenshotting.”