All models
Head to head
GLM 4.5 AIR vs GPT-OSS 120B
Price, context, inputs and filters. No benchmarks theatre.
GPT-OSS 120B costs 1.5× less per message.
Both hold the same amount of context.
Made by
Z.AI
OpenAI
Content tier
Open
Open
Intelligence
Quick
Smart & Cheap
Estimated price per message
~0.64 credits≈ 156 messages for $1
~0.43 credits≈ 232 messages for $1
Context window
131K tokens≈ 202 pages of text in one go
131K tokens≈ 202 pages of text in one go
Reads
Text
Text
Writes
Text
Text
Tool use
Yes - search, memory, code and more
Yes - search, memory, code and more
Served via
OpenRouter, Unbottled AI
OpenRouter, Unbottled AI
Status
Legacy
Current
A typical message: 16K tokens in, 1.5K out. Short replies cost less. Models served via OpenRouter bill the real provider cost plus our markup, so actual charges vary. 1 credit = $0.01.