GLM-4.5V vs GPT-4.1 Nano
API pricing, benchmark indices and specs — updated 19 October 2026.
openai · B · API-only
Input / 1M
$0.10
Output / 1M
$0.40
AA index
7.8
proprietary · 1.0M context
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | GLM-4.5V | GPT-4.1 Nano |
|---|---|---|
| Deployment | Open weights · also via API | API-only (closed weights) |
| Parameters | 107.7 B | n/a — API-only |
| Architecture | Glm4vMoeForConditionalGeneration | n/a — API-only |
| Context length | 65,536 | 1,047,576 |
| Licence | mit | Proprietary |
| Commercial use | Allowed | Per API terms |
| Languages | 2 | n/a — API-only |
| Downloads 30d | 25,981 | n/a — API-only |
| Downloads all time | 1.1 M | n/a — API-only |
| Quantizations on the Hub | SAFETENSORS | n/a — API-only |
| Gated | No | n/a — API-only |
| First seen on the Hub | 2025-08-10 | n/a — API-only |
| API input price / 1M tokens | $0.60 | $0.10 |
| API output price / 1M tokens | $1.80 | $0.40 |
| Est. cost per 1M input + 1M output tokens | $2.40 | $0.50 |
| Cached input / 1M tokens | $0.11 | $0.025 |
| AA Intelligence Index | 7.6 | 7.8 |
| AA Coding Index | — | 11.1 |
| AA Agentic Index | — | — |
| Max output tokens | 16,384 | 32,768 |
| API providers | 2 | 2 |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | No |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
GLM-4.5V
$2.40
GPT-4.1 Nano
$0.50
GPT-4.1 Nano is 4.8× cheaper at list price.
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
GLM-4.5V · fp16
253.6 GB / 24 GB