API model · 1 comparison
GLM 5.3 compared
GLM 5.3 costs $0.08 per million input tokens and $3.60 per million output tokens and reads up to 1,048,576 tokens in one request. Here it is compared with Claude Sonnet 5.5. Pick a matchup for the full side-by-side, a monthly cost calculator and our verdict.
Prices checked 13 November 2026 from the OpenRouter API.
GLM 5.3 at a glance
- Input / 1M tokens
- $0.08
- Output / 1M tokens
- $3.60
- Context window
- 1,048,576 tokens
- Longest reply
- 943,718 tokens
- Accepts
- text
- Providers on OpenRouter
- 35
- Best provider uptime, 24 h
- 100%
What GLM 5.3 costs next to the alternatives
Every model it is compared with, on the same two workloads the matchup pages use. A short request is 2,000 tokens in and 500 out; a document summary is 20,000 in and 1,000 out.
| Model | Input / 1M | Output / 1M | 1,000 short requests | 100 document summaries | Context | Also takes |
|---|---|---|---|---|---|---|
| GLM 5.3 (this model) | $0.08 | $3.60 | $1.97 | $0.53 | 1,048,576 | text only |
| Claude Sonnet 5.5 | $2.00 | $10.00 | $9.00 | $5.00 | 1,000,000 | files, images |
Base rates from OpenRouter (checked 13 November 2026). Cache discounts, media, tools and extra reasoning tokens are not included. Model names link to the full matchup.
- GLM 5.3 is the cheapest model here for short requests, at $1.97 per 1,000.
- GLM 5.3 cannot take files or images as input. Alternatives that can: files and images (Claude Sonnet 5.5).
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