Gemini 2.5 Flash vs GLM-4.5-Air: Pricing and Specs
Gemini 2.5 Flash $0.30 / $2.50 vs GLM-4.5-Air $0.20 / $1.10 per 1M tokens in / out.
| Gemini 2.5 Flash | GLM-4.5-Air | |
|---|---|---|
| Maker | Z.ai | |
| Input, per 1M tokens | $0.30 | $0.20 |
| Output, per 1M tokens | $2.50 | $1.10 |
| Context window | 1,048,576 input tokens google.dev | 128K tokens z.ai |
| Max output | 65,536 tokens google.dev | 96K tokens z.ai |
| Input types | Text, Image, Video, Audio google.dev | Text z.ai |
| Output types | Text google.dev | Text z.ai |
| Released | Jun 17, 2025 google.com | Not published in the docs we read |
| Shutdown | Dec 1, 2026, replaced by gemini-3.5-flash-lite google.com | Not published in the docs we read |
| Price checked | Nov 9, 2026 google.dev | Nov 9, 2026 z.ai |
| Tracked changes | 1 | 0 |
Facts side by side from each maker's own pages. No score and no verdict.
Recent changes
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Questions
Which is cheaper, Gemini 2.5 Flash or GLM-4.5-Air
By listed price, GLM-4.5-Air is lower: $0.20 vs $0.30 per 1M input tokens. Price is the only thing this answer compares.
What do 1M input and 1M output tokens cost on each
Gemini 2.5 Flash: $2.80. GLM-4.5-Air: $1.30. Listed standard prices, before caching or batch discounts.
What context window does each have
Gemini 2.5 Flash: 1,048,576 input tokens. GLM-4.5-Air: 128K tokens. From each maker's docs.
Who makes Gemini 2.5 Flash and GLM-4.5-Air
Gemini 2.5 Flash is made by Google. GLM-4.5-Air is made by Z.ai.