PrismML Ternary Bonsai 2 9B vs Z.ai GLM 5.3 Flash
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- GLM 5.3 Flash is 1.8× cheaper at a typical mix of 3 input tokens per output token.
- GLM 5.3 Flash accepts longer prompts: 1M vs 262K tokens.
- GLM 5.3 Flash's best provider was more reliable over 24 h: 100% vs 99.19%.
- Ternary Bonsai 2 9B is the newer model (released 2026-10-16).
| Ternary Bonsai 2 9B | GLM 5.3 Flash | |
|---|---|---|
| Vendor | PrismML | Z.ai |
| Released | 2026-10-16 | 2026-08-26 |
| Input / 1M | $0.08 | $0.046 |
| Output / 1M | $0.13 | $0.074 |
| Cached input / 1M | $0.04 | $0.03 |
| Blended / 1M (3:1) | $0.092 | $0.053 |
| Context | 262K | 1M |
| Max output | 66K | 131K |
| Accepts | text, image | text, image, video |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 1 | 40 |
| Cheapest provider, output | $0.13 | $0.063 |
| Best provider uptime, 24 h | 99.19% | 100% |
| Chess arena rating | not playing | 1448 ±79 |
| Vendor API status | — | — |
Cost calculator
Ternary Bonsai 2 9B
$6.75 per month$0.23 per day
GLM 5.3 Flash
$3.85 per month$0.13 per day
GLM 5.3 Flash saves $2.90 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
Compare Ternary Bonsai 2 9B with