Recipe
gpt-oss-20b-mxfp4-rtx-5090-32gb-lmstudio-tp1
gpt-oss-20b-mxfp4-rtx-5090-32gb-lmstudio-tp1Observed LocalMaxxing leaderboard run. Evidence for compatibility, not an executable launch contract.
Record
- Status
- candidate
- Source
- localmaxxing
- Engine
- lmstudio
- 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/openai/gpt-oss-20b- Repository
- openai/gpt-oss-20b
- 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
lmstudio
Evidence only · candidate · reference
Candidate evidence — not a Run contract
- Endpoint
http://127.0.0.1:1235- Served model
openai/gpt-oss-20b
Measured speed
| Concurrency | Context | Prefill | Decode | TTFT ms | Status | Sweep |
|---|---|---|---|---|---|---|
| 1 | 2,048 | 1,059.1 | 307.2 | 83.1 | observed | gpt-oss-20b-mxfp4-rtx-5090-32gb-lmstudio-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
- rtx-5090-32gb
- id
- gpt-oss-20b-mxfp4-rtx-5090-32gb-lmstudio-tp1
- model instance id
- openai-gpt-oss-20b--mxfp4
- recipe source
- localmaxxing
- schema version
- local-ai-registry/v1
- speed sweep ids
- gpt-oss-20b-mxfp4-rtx-5090-32gb-lmstudio-tp1-sweep
- status
- candidate
capabilities
engine
- name
- lmstudio
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 · hardware label
- RTX 5090
- localmaxxing · observed command
- # Remote endpoint: http://127.0.0.1:1235 servedModel: openai/gpt-oss-20b
- localmaxxing · run id
- cmsxpu5ap0cdams0175edah5t
- localmaxxing · tokenized · endpoint
- 127.0.0.1 ↗
- localmaxxing · tokenized · fidelity
- faithful
- localmaxxing · tokenized · served model name
- openai/gpt-oss-20b
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/cmsxpu5ap0cdams0175edah5t ↗ |