ZDTaichu 5.0-9B
CASIA · 9B dense
A 9B Chinese multimodal veteran
A 9B multimodal update from CASIA in June 2026 under Apache-2.0: perception 88, Chinese 88, video 80 and a composite of 80.6. It has no especially sharp single dimension, but solid Chinese context and single-machine deployment make it a good private baseline for government and education. Ecosystem 78 is the weak spot.
Last updated Oct 21, 2026Editorial scoring
Bottom line
Eight-dimension breakdown
editorial mapping · 0–100- ZDTaichu 5.0-9B80.6
Weights: perception 20 / documents 18 / charts 14 / video 14 / agents 14 / generation 6 / Chinese 6 / ecosystem 8. Definitions and sources on the methodology page.
Public benchmarks
as reported, not converted| Benchmark / metric | Value | Note |
|---|---|---|
| 参数规模 | 9B | Dense model |
| 许可证 | Apache-2.0 | Commercial use |
| 上下文 | 128K | Official spec |
Public scores come from different versions and prompts and are not interchangeable with our composite; they are one evidence input.
Scenario mapping
five stress tests, one scale| Scenario | Score | Observation |
|---|---|---|
| Chinese receipt OCR | 84 · Fine on clean receipts | |
| Chart data extraction | 78 · Stable on simple charts | |
| 30-min video QA | 80 · Above-average event localization | |
| Mobile GUI control | 68 · Not GUI-specific | |
| Chinese cultural context | 88 · Solid Chinese context |
Strengths and limitations
Strengths
- Chinese 88 and video 80 are a rare balanced combination at 9B.
- Apache-2.0 plus 9B keeps the barrier low for government and education on-prem work.
- Perception 88 keeps real-world images stable.
Limitations
- Documents 84 and charts 78: complex layouts and charts are not strengths.
- Agents 70: complex orchestration will not hold.
- Ecosystem 78: tooling and community reproduction trail the internet giants.
Price and real cost
List price
—N/A
Open weights; self-hosted, no API fee. For 1,000 images at 1,024px, ~1,100 image tokens each and 300 output tokens, the monthly cost is about ¥0.0 (assuming input at 25% of output price).
Use your volumeAbout ZDTaichu 5.0-9B
Is ZDTaichu 5.0-9B open source?
Licence: Open weights (Apache-2.0). Weights are available, but check the exact terms and filing requirements before commercial use.
How much does ZDTaichu 5.0-9B cost?
Open weights; self-hosted, no API fee. It ranks #33 with a composite of 80.6. Real bills depend on resolution, tiling, caching and volume discounts.
What is ZDTaichu 5.0-9B best for?
Government and education on-prem; Chinese content understanding; Video triage。
Why does ZDTaichu 5.0-9B score 80.6?
The composite weights eight dimensions: perception 20%, documents 18%, charts 14%, video 14%, agents 14%, generation 6%, Chinese 6%, ecosystem 8%. Its strongest dimension is Visual perception & grounding; its weakest is GUI agents & tool use.
Personal ranking · Not an official score
Every ranking, score and comparison on this page is an independent personal ranking, not an official score, and represents no vendor, institution or regulator. Scores are a subjective mapping of public evidence under our own weights — change the weights and the order changes. Disagree, or spotted a factual error? Contact the site owner: jizhi2024@foxmail.com — we check each report and log corrections in the changelog.