All modelsCalculate what your real prompts cost on GLM 5.1
GLM 5.1
open sourceZ.ai model, released 7 Apr 2026.
$1.40
per 1M input tokens
$4.40
per 1M output tokens
$0.26
per 1M cached-read tokens
Price history
input $/1M output $/1M7 Jul 2026 → 3 Oct 2026
Specifications
- Lab
- Z.ai
- Released
- 7 Apr 2026
- Context window
- 205k tokens
- Max output
- 131k tokens
- Input modalities
- text
- Output modalities
- text
- Knowledge cutoff
- —
- Open source
- Yes
Frequently asked questions
How much does GLM 5.1 cost?
GLM 5.1 costs $1.40 per 1M input tokens and $4.40 per 1M output tokens (list price, updated every 6 hours).
What is GLM 5.1's context window?
GLM 5.1 supports a 205k-token context window with up to 131k output tokens.