OpenAI: gpt-oss-20b (free)
openai/gpt-oss-20b:free
Context: 131,072In: $0.00/1MOut: $0.00/1MUpdated 2026-08-05
gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license. It uses a Mixture-of-Experts (MoE) architecture with 3.6B active parameters per forward pass, optimized for...
Intelligence
14.9
Coding
20.7
Agentic
3.1
Metric profile
Trend over time
Intelligence
14.9
Coding
20.7
Agentic
3.1
Only 1 snapshot so far (data refreshes daily) — the trend line appears after the 2nd snapshot.
Design Arena (ELO by category)
| Category | ELO | Win rate | Rank |
|---|---|---|---|
| dataviz | 960 | 39.7% | #101 |
| website | 876 | 27.9% | #117 |