Phi-4-Reasoning-Vision-15B-ROCmFPX-Q8_0-GGUF

⚠️ STOCK llama.cpp WILL NOT LOAD THIS MODEL

⚠️ -fa off is required — flash attention breaks the vision path on gfx1151.

14.11 GiB · 14.15 tok/s on a Ryzen AI MAX+ 395.

Phi-4-Reasoning-Vision-15B — ROCmFPX 8-bit GGUF

An 8-bit ROCmFPX quantization for AMD gfx1151 (Ryzen AI MAX+ 395 / Strix Halo), quantized from BF16 GGUF — a lossless source, not a requantization of a lower-bit build.

⛔ Requires a llama.cpp with the ROCmFPX quant types

Q8_0_ROCMFPX (111) and Q8_0_ROCMFPX_AGENT (115) exist only in charlie12345/ROCmFPX. Stock llama.cpp reports invalid ggml type 103. Ignore the auto-generated "Use this model" commands above.

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All quant variants

Three builds, all measured in one session on one box with one binary (Ryzen AI MAX+ 395, gfx1151, ROCm 7.2.4, ROCmFPX-2809dc5, -fa off) — so these rows are directly comparable. Median of 3, warm-up discarded, otherwise-idle box.

⚠️ The 4-bit build is ~1.7× faster and 43% smaller. The 8-bit builds exist for accuracy headroom, not throughput. The two 8-bit builds are within noise of each other (14.08 vs 14.15, ranges touching) — this model has no MTP draft head, and AGENT's benefit shows up in draft acceptance, so there is nothing here for it to win.

⚠️ -fa off is mandatory — flash attention breaks the vision path on gfx1151. The BF16 mmproj (862 MiB) ships in every one of these repos and is required for vision.

Correctness: 17×23 ⇒ ✅ 391 · capital of Japan ⇒ ✅ Tokyo · days in 2024 ⇒ ✅ 366

Give this model room to reason. On a curt "reply with only the number" prompt it can answer 365 for the 2024 question; allowed to reason it correctly derives leap year ⇒ 366.

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What was NOT measured

• No perplexity run, and no quality A/B against the source. The checks above are memorized-fact prompts — necessary but not sufficient.
• No long-context testing. · No tool-calling evaluation.
• Vision was smoke-tested only (the 4-bit build correctly describes an 8×8 red PNG as Red); no vision benchmark was run on these 8-bit builds.

Base model licence inherited; credit for the model goes to its authors.