Update README.md

README.md

@@ -70,13 +70,17 @@ Perplexity (PPL) streaming evaluation on WikiText-2; window=stride=4096, ~100k t
   <tbody>
     <tr><td>MLX 8-bit (reference)</td><td>10.75</td></tr>
     <tr><td>MLX 6-bit (gs=32)</td><td>10.46 (−2.7% vs 8-bit/gs64)</td></tr>
+    <tr><td><strong>MLX 5-bit (gs=32)</strong></td><td><strong>11.11 (+3.3% vs 8-bit/gs64, +6.2% vs 6-bit/gs32)</strong></td></tr>
     <tr><td>MLX 4-bit (gs=32)</td><td>13.70 (+27.4% vs 8-bit/gs64, +31.0% vs 6-bit/gs32)</td></tr>
   </tbody>
 </table>
 
-Interpretation: 
-- MLX 6-bit/gs32 edges out MLX 8-bit/gs64 slightly (better quality at lower footprint).
-- MLX 4-bit/gs32 shows a meaningful drop in quality; fine for tight memory, but expect more errors.
+**Interpretation**
+- MLX 6-bit/gs32: Best of the group; edges out 8-bit/gs64 slightly at a smaller 
+footprint.
+- MLX 5-bit/gs32: Small, consistent drop vs 6-bit/gs32 and 8-bit/gs64 (~3–6% PPL); strong “fits-16GB” option when GPU buffer limits matter.
+- MLX 8-bit/gs64: Solid reference; near‑FP16 quality at a larger footprint.
+- MLX 4-bit/gs32: Trades accuracy for footprint; use when RAM is constrained or throughput is the priority.
 
 ## Conversion details (provenance)