GLM 5.3 is Z.ai's full-size foundation model with a 1M-token context window, released in August 2026 as the latest general-purpose reasoning and generation model.
- Strengths
- Handles extended documents, complex reasoning, and long-horizon tasks with its large context window and full model capacity.
- Best for
- Applications requiring deep reasoning, document analysis, and extended context that don't prioritize speed or multimodal input.
- Limitations
- Slower inference than GLM 5.3 Flash variants and lacks native multimodal capabilities; GLM 5.3 FlashX offers faster performance for speed-critical workloads.
Input / 1M
$1.40
Output / 1M
$4.40
Cached input / 1M
$0.14
Context window
1.05M
Price history
Input (solid)Output (dashed)
Price change
- 30d
- in decreased 0.0% out decreased 0.0%
- 90d
- in decreased 0.0% out decreased 0.0%
- 1y
- in decreased 0.0% out decreased 0.0%
- Since launch
- in decreased 0.0% out decreased 0.0%
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 2 Oct 2026 | $1.40 | $4.40 | $0.14 | Imported from OpenRouter | openrouter.ai |
| 1 Oct 2026 | $0.24 | $3.39 | $0.192 | Imported from OpenRouter | openrouter.ai |
| 29 Sep 2026 | $1.40 | $4.40 | $0.26 | Imported from OpenRouter | openrouter.ai |
| 28 Sep 2026 | $0.1785 | $2.80 | $0.1466 | Imported from OpenRouter | openrouter.ai |
| 27 Sep 2026 | $1.40 | $4.40 | $0.26 | Imported from OpenRouter | openrouter.ai |
| 26 Sep 2026 | $0.3794 | $1.19 | $0.0705 | Imported from OpenRouter | openrouter.ai |
| 24 Sep 2026 | $1.40 | $4.40 | $0.26 | Imported from OpenRouter | openrouter.ai |
| 23 Sep 2026 | $0.84 | $2.64 | $0.156 | Imported from OpenRouter | openrouter.ai |
| 22 Sep 2026 | $0.6538 | $2.05 | $0.1214 | Imported from OpenRouter | openrouter.ai |
| 20 Sep 2026 | $0.91 | $2.86 | $0.169 | Imported from OpenRouter | openrouter.ai |
| 18 Sep 2026 | $0.91 | $2.86 | $0.169 | Imported from OpenRouter | openrouter.ai |
| 14 Sep 2026 | $1.40 | $4.40 | $0.26 | Imported from OpenRouter | openrouter.ai |
| 13 Sep 2026 | $1.09 | $3.43 | $0.2028 | Imported from OpenRouter | openrouter.ai |
| 7 Sep 2026 | $1.40 | $4.40 | $0.26 | Imported from OpenRouter | openrouter.ai |
| 3 Sep 2026 | $1.40 | $4.40 | $0.14 | Imported from OpenRouter | openrouter.ai |
| 19 Aug 2026 | $1.40 | $4.40 | $0.26 | Imported from OpenRouter | openrouter.ai |