Model comparison · text
Phi-4-mini-reasoning vs gpt-oss-20b
Symmetrical, primary-source facts with unknown values left visible. No winner is assigned without comparable measurements.
FieldAt a glance
Microsoft · activePhi-4-mini-reasoningVerified Aug 28, 2026
OpenAI · activegpt-oss-20bVerified Aug 28, 2026
Technical differences
Side-by-side facts
| Field | Phi-4-mini-reasoning | gpt-oss-20b |
|---|---|---|
| Developer | Microsoft | OpenAI |
| Family | Phi 4 Mini Reasoning | Gpt Oss |
| Model | Phi-4-mini-reasoning | gpt-oss-20b |
| Version | Phi-4-mini-reasoning | gpt-oss-20b |
| Lifecycle | active | active |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
| Context window | 131072 | 131072 |
| Total parameters | 3836021760 | 20914757184 |
| Active parameters | Unknown | 3600000000 |
| License | mit | apache-2.0 |
| Open weights | Yes | Yes |
| API available | Unknown | Yes |
| Self-hostable | Yes | Yes |
| Capabilities | chat, generation, reasoning | chat, generation, reasoning, tools |
13 comparable fields · 7 material differences · Pair passes the primary-source comparison gate
Primary benchmark evidence
Comparable performance
No protocol-matched benchmark yet.Results appear here only when both models share the same benchmark version, metric, evaluation protocol, and evidence class.
Phi-4-mini-reasoning capabilities
Input price—
Output price—
Serving providers0
Canonical IDmicrosoft/Phi-4-mini-reasoning
gpt-oss-20b capabilities
Input price$0.030
Output price$0.13
Serving providers4
Canonical IDopenai/gpt-oss-20b
Internal comparison graph
Related comparisons
Primary evidence