What is the difference between GPT OSS 120B and Qwen3.5 35B A3B?

GPT OSS 120B is developed by OpenAI while Qwen3.5 35B A3B is developed by Qwen. GPT OSS 120B has a 131K token context window vs Qwen3.5 35B A3B's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT OSS 120B or Qwen3.5 35B A3B?

It depends on your use case. GPT OSS 120B and Qwen3.5 35B A3B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does GPT OSS 120B cost compared to Qwen3.5 35B A3B?

GPT OSS 120B costs $0.18/M input tokens and Qwen3.5 35B A3B costs $0.25/M input tokens. GPT OSS 120B is $0.07/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare GPT OSS 120B and Qwen3.5 35B A3B on Rival?

This page shows a side-by-side comparison of GPT OSS 120B and Qwen3.5 35B A3B across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Feb 2026

GPT OSS 120BvsQwen3.5 35B A3B

GPT OSS 120B is cheaper than Qwen3.5 35B A3B at $0.18/M vs $0.25/M input tokens.

GPT OSS 120B and Qwen3.5 35B A3B compared across 53 shared prompts
Spec	GPT OSS 120B	Qwen3.5 35B A3B
Input price	$0.18/M tokens	$0.25/M tokens
Output price	$0.8/M tokens	$2/M tokens
Context window	131K tokens	262K tokens
Parameters	117B (5.1B active)	35B (3B active)
Weights	Open	Open
Free API (OpenRouter)	No	No
Released	Aug 2025	Feb 2026