Grounded in plant notes
Concrete ≈ 8% of global CO₂
Your plant's R&D department, on its own hardware.
MixMind cuts cement — cost and carbon — while holding strength. The recipe never leaves the building.
or scroll and try each step yourself ↓R² 0.910strength model · 1,030 lab tests
−17%CO₂, strength held
0 bytessent off-site
Gemma 4 12B · LoRA fine-tuned
trained on AMD Instinct MI300X
served on AMD Radeon · on-prem
open source
The stakes
Concrete is ≈8% of global CO₂ — and cement is most of it.
01
Ask the floor.
It answers from the plant's own notes with a citation — or honestly refuses.
TRY IT Type any floor question — or click one below
Source
The trade
Cheap stone in. Costly cement out — if the numbers hold.
02
Four specialists debate the change.
Strength comes from a model trained on 1,030 real lab tests (R²=0.91) — not from the LLM.
TRY IT Pick a proposal — watch the verdict change
Mix composition · kg/m³
Cement
Slag
Sand
Chips
Water
Predicted strength vs. spec · MPa
Strength over time · the slag story · MPa by age (model, R²=0.91)
The mix
The mix is a living thing.
03
Now drive it yourself.
The same model recomputes live as you move the mix.
TRY IT Drag the cement down — watch cost, carbon and the verdict react
Cement260 kg/m³
Slag (replaces cement)60 kg/m³
Material prices · $/tonnemarket est. — type your real quotes
CO₂ saved · at plant volume
— t / yr
Annual volume50,000 m³/yr
Presenter: 123 scenarios · ↑↓ cement · ←→ slag
Predicted strength vs. spec · MPa
04
The product, live.
Real-time 3D — drag the paver. This is the stone the committee approved: less cement, same strength.
AMD
Verified on real AMD hardware.
Not claims — command output. Full logs in the repo ↗
Instinct MI300X · 192 GB · fine-tune, $2
GPU[0] Card Series: AMD Instinct MI300X VF (gfx942) trainable params: 65,568,768 (0.55% of 12B) epoch 1 loss 3.029 → epoch 3 loss 0.001 saved LoRA adapter → mixmind-gemma4-lora (287 MB)
Radeon PRO W7900 · 48 GB · in the plant
$ rocm-smi --showproductname GPU[0] Card Vendor: Advanced Micro Devices, Inc. [AMD/ATI] GPU[0] GFX Version: gfx1100 GPU[0] VRAM Total: 51,522,830,336 B (48 GB)
The point