token.app › Compare › gpt-oss-20b (free) vs GLM 5.2
gpt-oss-20b (free) vs GLM 5.2
gpt-oss-20b (free) is free to use, against $0.387 per million tokens. GLM 5.2 accepts the larger context window (1.0M).
Head to head
Blended price uses a 3:1 input:output mix
| gpt-oss-20b (free) | GLM 5.2 | |
|---|---|---|
| Provider | OpenAI | Zhipu AI |
| Input $/1M | Free | $0.252 |
| Output $/1M | Free | $0.792 |
| Blended $/1M | Free | $0.387 |
| Context window | 131K | 1.0M |
| Max output | 33K | 128K |
| Released | Aug 2025 | Jun 2026 |
| Licence | Open weights | Open weights |
Choose gpt-oss-20b (free) if…
- Costs less per token — Free vs $0.387 blended
Choose GLM 5.2 if…
- Larger context window (1.0M)
- Newer model (released Jun 2026)
FAQ
Which is better, gpt-oss-20b (free) or GLM 5.2?
We do not hold independently-run benchmark scores covering both gpt-oss-20b (free) and GLM 5.2, so we make no quality claim. Their pricing and specifications are compared on this page.
Is gpt-oss-20b (free) cheaper than GLM 5.2?
gpt-oss-20b (free) is cheaper: Free versus $0.387 per million tokens blended at 3:1 input:output. Input alone: Free vs $0.252. Output alone: Free vs $0.792.
What context windows do gpt-oss-20b (free) and GLM 5.2 have?
gpt-oss-20b (free): 131,072 tokens. GLM 5.2: 1,048,576 tokens.
Who makes gpt-oss-20b (free) and GLM 5.2?
gpt-oss-20b (free) is made by OpenAI. GLM 5.2 is made by Zhipu AI.
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