OpenAI
114 models indexed
OpenAI
114models
Avg: $5.95 / 1M input.107 models with 128K+ context. 6 modality types.
View OpenAI collection →OpenAI vs Z Ai
Comparing model portfolios, pricing, and capabilities across 114+ OpenAI models and 21+ Z Ai models.
At a glance
Z Ai
21 models indexed
Z Ai
21models
Avg: $0.48 / 1M input.19 models with 128K+ context. 3 modality types.
View Z Ai collection →Top 5 cheapest — OpenAI
| Model | Context | Input / 1M | Modality |
|---|---|---|---|
| OpenAI: gpt-oss-120b (free) | 131.072K | $0.0000 | text->text |
| OpenAI: gpt-oss-20b (free) | 131.072K | $0.0000 | text->text |
| OpenAI: GPT-5 Nano (batch) | 400K | $0.0250 | text+image+file->text |
| OpenAI: gpt-oss-20b | 131.072K | $0.0300 | text->text |
| OpenAI: gpt-oss-120b (exacto) | 131.072K | $0.0390 | text->text |
Top 5 cheapest — Z Ai
| Model | Context | Input / 1M | Modality |
|---|---|---|---|
| Z.ai: GLM 4.5 Air (free) | 131.072K | $0.0000 | text->text |
| Z.ai: GLM 5.2 (free) | 32.768K | $0.0000 | text->text |
| Z.ai: GLM 4.7 Flash | 200K | $0.0605 | text->text |
| Z.ai: GLM 5.3 Flash (batch) | 1,048.576K | $0.0750 | text+image+video->text |
| Z.ai: GLM 5.3 Flash | 1,310.72K | $0.0900 | text+image+video->text |
Frequently asked questions
Which provider has more models — OpenAI or Z Ai?
OpenAI has 114 models. Z Ai has 21 models.
Which is cheaper on average — OpenAI or Z Ai?
OpenAI average: $5.95/1M. Z Ai average: $0.48/1M.
Which provider has more long-context (128K+) models?
OpenAI: 107 models. Z Ai: 19 models.
How do I compare specific models between OpenAI and Z Ai?
Use the OpenAI and Z Ai collection pages to browse individual models, then open a pairwise comparison from any model page.