gpt-oss-20b by OpenAI

gpt-oss-20b by OpenAI is listed on Arena.ai’s Text Arena. As of 12 November 2026 it holds #272 of 421 models.

Where it stands

Platform: Arena.ai — Text Arena. Position: #272.

• Arena score: 1318±6
• Votes: 10 396
• Price per 1M tokens (input/output): $0.02 / $0.11
• Context: 131.1K

What it is

• Developer: OpenAI
• Licence: Apache 2.0
• Arena: Text Arena
• Model page: primary source

How to read the figures

The Arena score comes from pairwise chat comparisons, not a guarantee for your own task. Rankings, prices and context windows change; check the primary source before deciding.

Sources

1. Arena.ai, Text Arena leaderboard, 12 November 2026 — leaderboard
2. Model primary source — link

Prepared by the Listing AI desk from Arena.ai’s public leaderboard. It describes ranking data; it is not an independent review or test.