gpt-oss-20b is 11.4× cheaper per million tokens (blended). Qwen3.5 Plus 2026-02-15 has the larger context window (1,000,000 vs 131,072 tokens, 7.6×). gpt-oss-20b is open-weights; the other is not.

gpt-oss-20b vs Qwen3.5 Plus 2026-02-15

Live catalog fields. Best-in-row is highlighted.

gpt-oss-20bopen

OpenAI · openai__gpt-oss-20b

Qwen3.5 Plus 2026-02-15

Qwen · qwen__qwen3.5-plus-02-15

Identity

Fieldopenai__gpt-oss-20bqwen__qwen3.5-plus-02-15
ProviderOpenAIQwen
Slugopenai__gpt-oss-20bqwen__qwen3.5-plus-02-15
Statuslivelive
Open weightsYesNo
License——
HuggingFaceopenai/gpt-oss-20b—

Quality

Fieldopenai__gpt-oss-20bqwen__qwen3.5-plus-02-15
Quality index (0–100)——

Cost

Fieldopenai__gpt-oss-20bqwen__qwen3.5-plus-02-15
Input $ / 1M tokens$0.03$0.26
Cached input $ / 1M$0.03—
Output $ / 1M tokens$0.13$1.56

Context

Fieldopenai__gpt-oss-20bqwen__qwen3.5-plus-02-15
Max context tokens131,0721,000,000
Max output tokens117,96465,536

Modalities

Fieldopenai__gpt-oss-20bqwen__qwen3.5-plus-02-15
Inputtexttext, image, video
Outputtexttext