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Gemma 4 31B

Ran on 1 kind of machine here, but its speed was not recorded. OpenRouter sells it at $0.40 per million output tokens.

2 builds of Gemma 4 31B, 2 signed runs on real machines: different packagers, precisions and engines, each a different file with its own numbers.

3.4tok/s, fastest machine
128Kcontext proved by recall
18.9 GBmemory, smallest build
1provider measured it
best on ollama · 2 builds

trained 256K · proved 128K context, by unsloth Q4_K_M

3.4 tok/s peak, by unsloth Q4_K_M

What it fits on

The smallest build needs about 18.9 GB; 4 of 18 kinds of machine on the network can hold it. Bars: each kind's memory (its card's, else RAM) · ticks: every build, at the size it held plus a fifth for the prompt.

  1. Linux, CPU only · 2 CPUs1 GB RAMnone
  2. NVIDIA GeForce RTX 3050 Laptop GPU4 GB on the cardnone
  3. NVIDIA GeForce GTX 16504 GB on the cardnone
  4. AMD Radeon(TM) Vega 8 Mobile Graphics7 GB RAMnone
  5. Windows, CPU only · 12 CPUs7 GB RAMnone
  6. Apple silicon8 GB RAMnone
  7. Apple M18 GB RAMnone
  8. Mac, CPU only · 8 CPUs8 GB RAMnone
  9. NVIDIA GeForce RTX 3080 Ti12 GB on the cardnone
  10. Tesla T415 GB on the cardnone
  11. Intel(R) UHD Graphics 73016 GB RAMnone
  12. Intel(R) Iris(R) Xe Graphics16 GB RAMnone
  13. Apple M416 GB RAMnone
  14. Apple M116 GB RAMnone
  15. NVIDIA L422 GB on the card1 of 2
  16. 2× Tesla T429 GB on the cardevery build
  17. Linux, CPU only · 4 CPUs31 GB RAMevery build
  18. NVIDIA RTX PRO 6000 Blackwell Server Edition95 GB on the cardevery build

How far back it remembers, machine by machine

Filled: the needle came back at that prompt size · outlined: asked and lost · blank: not asked · trained for 256K. 0 walks ended because the model forgot, 1 because the machine could not hold the prompt.

machine · build4K8K16K32K64K128Kwhy it stopped
Gram ·a5be462× Tesla T4 · Q4_0 by unsloth128K recalled at every size asked
Gram ·a5be462× Tesla T4 · Q4_K_M by unsloth64K too slow to answer here

Measured by

The people whose machines signed these numbers

proved by at least one build: Tool calling · Tool loop finished · Faithful to tool results · Chained tool calls · Structured output · Sustained output · Extended thinking · Vision · Counts in images · Multiple images at once · Spatial reasoning · Writes code · Reasons about code · Synthesises sources · Follows instructions

Every build

Each its own file with its own page: the machines that ran it and their signatures.

buildenginewhose workmemorycontext provedbest tok/smachines
Q4_K_M by unslothhf.co/unsloth/gemma-4-31B-it-GGUF:Q4_K_Mollamaquantizer · unsloth22.4 GB128K3.41
Q4_0 by unslothhf.co/unsloth/gemma-4-31B-it-GGUF:Q4_0ollamaquantizer · unsloth18.9 GB128K2.41