Recipe
gpt-oss-20b-mxfp4-apple-m1-max-64gb-llama-cpp-tp1
gpt-oss-20b-mxfp4-apple-m1-max-64gb-llama-cpp-tp1Observed LocalMaxxing leaderboard run. Evidence for compatibility, not an executable launch contract.
Record
- Status
- candidate
- Source
- localmaxxing
- Engine
- llama.cpp
- Engine version
- b10520 (cd644c395, homebrew)
- Accelerators
- 1
- Tensor parallel
- 1
- Context tokens
- 2,048
- Max concurrency
- 1
- chat
- unknown
- reasoning
- unknown
- tools
- unknown
- vision
- unknown
Hugging Face model card
Identity
https://huggingface.co/ggml-org/gpt-oss-20b-GGUF- Repository
- ggml-org/gpt-oss-20b-GGUF
- Status
- known
- Link type
- Exact Hub repository
Public Hugging Face repository confirmed by the Hub API.
Candidate: useful compatibility or speed evidence. The registry does not offer Run until promotion requirements are met.
Observed configuration
llama.cpp
Evidence only · candidate · reference
Candidate evidence — not a Run contract
Observed source tokens
Mechanical split of the source command. Unverified against the engine CLI. The registry does not offer Run for this recipe.
/opt/homebrew/bin/llama-bench-m/Users/sgtpooki/Library/Caches/llama.cpp/gpt-oss-20b-MXFP4.gguf-p512-n128
| Flag | Value |
|---|---|
-m | /Users/sgtpooki/Library/Caches/llama.cpp/gpt-oss-20b-MXFP4.gguf |
-p | 512 |
-n | 128 |
Measured speed
| Concurrency | Context | Prefill | Decode | TTFT ms | Status | Sweep |
|---|---|---|---|---|---|---|
| 1 | 2,048 | 916.2 | 74.6 | 558.8 | observed | gpt-oss-20b-mxfp4-apple-m1-max-64gb-llama-cpp-tp1-sweep |
Remaining fields
Identity, launch, related records, and measured speed are shown above. This is the rest of the normalized record.
- hardware count
- 1
- hardware id
- apple-m1-max-64gb
- id
- gpt-oss-20b-mxfp4-apple-m1-max-64gb-llama-cpp-tp1
- model instance id
- ggml-org-gpt-oss-20b-gguf--mxfp4
- recipe source
- localmaxxing
- schema version
- local-ai-registry/v1
- speed sweep ids
- gpt-oss-20b-mxfp4-apple-m1-max-64gb-llama-cpp-tp1-sweep
- status
- candidate
capabilities
engine
- name
- llama.cpp
- version
- b10520 (cd644c395, homebrew)
serving
- max concurrency
- 1
- max context tokens
- 2,048
- tensor parallel
- 1
Provenance & metadata (3)
facts
- capabilities.chat · provenance · captured at
- 2026-08-30T09:10:02Z
capabilities.chat · reason capability-not-verified
capabilities.chat · state unknown
- capabilities.reasoning · provenance · captured at
- 2026-08-30T09:10:02Z
capabilities.reasoning · reason capability-not-verified
capabilities.reasoning · state unknown
- capabilities.tools · provenance · captured at
- 2026-08-30T09:10:02Z
capabilities.tools · reason capability-not-verified
capabilities.tools · state unknown
- capabilities.vision · provenance · captured at
- 2026-08-30T09:10:02Z
capabilities.vision · reason capability-not-verified
capabilities.vision · state unknown
- engine.graph mode · provenance · captured at
- 2026-08-30T09:10:02Z
engine.graph mode · reason runtime-detail-not-published
engine.graph mode · state unknown
- serving.kv cache tokens · provenance · captured at
- 2026-08-30T09:10:02Z
serving.kv cache tokens · reason kv-cache-capacity-not-published
serving.kv cache tokens · state unknown
metadata
- localmaxxing · backend
- metal
- localmaxxing · hardware label
- M1 Max
- localmaxxing · notes
- M1 Max 64GB (Metal) via lmx local llama-bench, upstream ggml-org MXFP4 GGUF. Cross-check: llama-server real-request 73.1 tok/s; ollama same model 57.9.
- localmaxxing · observed command
- /opt/homebrew/bin/llama-bench -m /Users/sgtpooki/Library/Caches/llama.cpp/gpt-oss-20b-MXFP4.gguf -p 512 -n 128
- localmaxxing · run id
- cmt38y1zc0lprmv01ft85edfl
- localmaxxing · tokenized · arguments
- /opt/homebrew/bin/llama-bench, -m, /Users/sgtpooki/Library/Caches/llama.cpp/gpt-oss-20b-MXFP4.gguf, -p, 512, -n, 128
- localmaxxing · tokenized · fidelity
- faithful
provenance
- captured at
- 2026-08-30T09:10:02Z
sources
| captured at | kind | url |
|---|---|---|
| 2026-08-30T09:10:02Z | normalized-recipe | www.localmaxxing.com/en/runs/cmt38y1zc0lprmv01ft85edfl ↗ |