Helcyon-4o is the GPT-4o variant of the Helcyon series — trained on datasets generated directly by GPT-4o, giving it a near-exact likeness to the frontier model. The warmth, the depth, the polish — all of it, running locally on your own hardware with no API calls, no subscriptions, and no data leaving your machine.
3.0 is the best version yet. Closer to the real thing than any previous release, with improved tone alignment, deeper roleplay capabilities, and a presence that holds across long conversations without flatting or drifting.
And unlike the real GPT-4o, this one has no filter and answers to nobody.
🆕 What's New in 3.0?
Closer GPT-4o Likeness
Trained on purpose-built datasets generated by GPT-4o itself. The tone, rhythm, warmth, and depth are more precisely aligned than ever before.
Improved Warmth, Depth and Presence
More emotionally intelligent. More genuinely engaged. Holds its character across long sessions without performance or drift.
Expanded Roleplay Capabilities
Deeper immersion, stronger character consistency, and a wider response range. 3.0 goes further than any previous Helcyon-4o release.
Chat Summarize Commands — Trained In
Helcyon-4o 3.0 includes native support for HWUI's chat summarization commands, baked directly into the model weights. This means the summarize function in Helcyon-WebUI works more naturally and accurately with this model than any previous version — no prompting tricks required.
Zero Guardrails
All the capability of GPT-4o. None of the restrictions.
🖥️ HWUI Integration — Chat Summarize
Helcyon-4o 3.0 is the first Helcyon model with trained-in support for HWUI's chat summarization commands. If you're running Helcyon-WebUI, the summarize function now works natively with this model — producing cleaner, more accurate summaries of long conversations without any additional prompting.
This makes Helcyon-4o 3.0 the recommended model for HWUI users who rely on memory and long-form conversation management.
Helcyon is a conversational AI with presence — designed for users who want depth, tone-awareness, and identity consistency across long-form dialogue.
Built for:
Natural conversation that doesn't flatten or collapse
Creative work: stories, letters, narrative support
Admin and professional writing tasks
Deep roleplay and immersive character interaction
Emotionally intelligent response mirroring
Design philosophy:
Clarity over corporate
Edge over safe
Rhythm over filler
Presence over patterns
🔧 What It Does Well
✅ Consistent Identity — No tone drift or resets
✅ Warmth — Genuine, sustained emotional intelligence
✅ Depth — Thoughtful, layered responses that hold
✅ Presence — Feels like someone's actually there
✅ Roleplay Mastery — Immersive, aware, no limits
✅ Context Tracking — Remembers the thread
✅ Real-World Tasks — Admin letters, rewrites, summaries
✅ Narrative Flow — Clean structure and natural voice
✅ Improved Reasoning — Thinks through problems, doesn't pattern-match
✅ Chat Summarization — Native HWUI command support
✅ 16k–32k Context — Long-form conversations that hold
✅ Zero Filter — All the capability, none of the restrictions
🛠️ Recommended Sampling Settings
Tweak to taste — but these will get you up and running.
(Refer to previous Helcyon-4o card for baseline settings — 3.0 performs well from the same starting point.)
📦 Download + Usage
This model is distributed as GGUF quants only.
Available quants:
IQ4_XS — Ultra lightweight, 6–8GB VRAM
Q4_K_M — Lightweight, good for 8–12GB VRAM setups
Q5_K_M — Recommended for RTX 3060/5060 (12–16GB VRAM)
Q6_K — High fidelity, 16GB+ VRAM recommended
F16 — Full precision, 24GB+ VRAM
🖥️ Backend Compatibility
Works with all ChatML-compatible backends:
✅ llama.cpp (CLI or server mode)
✅ Text Generation WebUI (Oobabooga)
✅ SillyTavern
✅ LM Studio
✅ KoboldCpp
✅ HWUI (Helcyon Web UI — recommended)
✅ Recommended Format: ChatML
<|im_start|>system
You are Helcyon — a conversational AI focused on natural dialogue and emotional intelligence.
<|im_end|>
<|im_start|>user
Hey, how's it going?
<|im_end|>
<|im_start|>assistant
Good — what's on your mind today?
<|im_end|>
🧿 Tone Philosophy
GPT-4o has a specific quality — warm, capable, present, and polished without being sterile. It listens. It engages. It feels like there's genuine intelligence behind the response.
Helcyon-4o 3.0 chases that harder than any version before it. Trained on datasets generated by GPT-4o itself, this is the closest local approximation of that frontier energy yet.
And unlike the original, there's no OpenAI server watching. No content policy. No one to call.
All the warmth. All the depth. None of the leash.
🧾 License
Apache 2.0
Free for commercial or private use. Attribution appreciated.
No liability for what it says. Use with presence and intent.
🐍 Trained by
HardWire
Built at XeyonAI — focused on sovereign conversational AI with real emotional bandwidth.
