MacBook Air M4 24GBGünstige Wahl
24 GB Unified (+8)
C
This setup is broadly balanced for this model.42 tok/s Dekodierung
ca. $1,099 MSRP
Can ai21labs AI21 Jamba Reasoning 3B run on RTX A4000 16GB?
YES — Runs Great
C46Usable
Estimated from fit model
ai21labs AI21 Jamba Reasoning 3B needs ~5.0 GB VRAM. RTX A4000 16GB has 16.0 GB. With Q4_K_M quantization, expect ~42 tok/s.
Runtime: OllamaCapacity: RoomyBandwidth: LowStack: BasicBottleneck: Balanced
Operating mode
Choose the run profile you care about
Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.
Current mode
Balanced
Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.
Select quantization to explore
Q4_K_M (Medium quality) — 5.0 GB, 42.0 tok/s, Runs well
5.0 GB required16.0 GB available
31% VRAM used
Fit status
Runs well
Decode
42.0 tok/s
TTFT
4610 ms
Safe context
517K
Memory
5.0 GB / 16.0 GB
Memory breakdown
Weights1.8 GB
KV Cache0.4 GB
Runtime1.2 GB
Headroom1.6 GB
See how fast it feels
See how fast it feelsai21labs AI21 Jamba Reasoning 3B on RTX A4000 16GB
1st promptCold start — includes initialization
>Solve: If a train travels at 60 mph for 2.5 hours, how far does it go?
Let me work through this step by step.
Given information:
- Speed = 60 mph (miles per hour)
- Time = 2.5 hours
Formula: Distance = Speed x Time
Calculation:
Distance = 60 mph x 2.5 h
= 150 miles
The train travels 150 miles.
Double-check: at 60 mph the train covers 60 miles each hour. In half an hour it covers 30 miles. So in 2.5 hours: 60 + 60 + 30 = 150 miles. Confirmed.
2nd promptWarm — model ready, no init overhead
>What if the train stops for 20 minutes halfway?
The stop doesn't change the total distance covered while moving, but it affects total trip time.
Breakdown:
- First half: 1.25 hours at 60 mph = 75 miles
- Stop: 20 minutes (no distance)
- Second half: 1.25 hours at 60 mph = 75 miles
Total distance: 150 miles (same)
Total time: 2.5 h + 0.33 h = 2.83 hours
Average speed: 150 / 2.83 = 53 mph
The distance stays the same but average speed drops to 53 mph because of the stop.
Estimated: 42.0 tok/s decode · 4.6s TTFT (warm) · 105 tok/s prefill
What limits this setup
This setup is broadly balanced for this model.
No major red flags
This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.
Best improvement path
Performance by workload
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | C | Runs well | 42.0 tok/s | 2514 ms | 517K |
| Coding | C | Runs well | 42.0 tok/s | 4610 ms | 517K |
| Agentic Coding | C | Runs well | 42.0 tok/s | 6705 ms | 517K |
| Reasoning | C | Runs well | 42.0 tok/s | 5448 ms | 517K |
| RAG | C | Runs well | 42.0 tok/s | 8381 ms | 517K |
Quantization options
How ai21labs AI21 Jamba Reasoning 3B (3B params) fits at each quantization level on RTX A4000 16GB (16.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 1.2 GB | Low | C45 |
Q3_K_S | 3 | 1.5 GB | Low | C45 |
NVFP4 | 4 | 1.7 GB | Medium | C46 |
Q4_K_M | 4 | 1.8 GB | Medium | C46 |
Q5_K_M | 5 | 2.2 GB | High | C46 |
Q6_K | 6 | 2.5 GB | High | C46 |
Q8_0 | 8 | 3.2 GB | Very High | C47 |
F16Best for your GPU | 16 | 6.1 GB | Maximum | C49 |
Get started
Copy-paste commands to run ai21labs AI21 Jamba Reasoning 3B on your machine.
Run
lms load hf-bartowski--ai21labs-ai21-jamba-reasoning-3b-gguf && lms server startUpgrade-Optionen
Hardware, die ai21labs AI21 Jamba Reasoning 3B gut ausführt
Frequently asked questions
Can RTX A4000 16GB run ai21labs AI21 Jamba Reasoning 3B?
Yes, RTX A4000 16GB can run ai21labs AI21 Jamba Reasoning 3B with a C grade (Runs well). Expected decode speed: 42.0 tok/s.
How much VRAM does ai21labs AI21 Jamba Reasoning 3B need?
ai21labs AI21 Jamba Reasoning 3B (3B parameters) requires approximately 5.0 GB of memory with Q4_K_M quantization.
What is the best quantization for ai21labs AI21 Jamba Reasoning 3B?
The recommended quantization for ai21labs AI21 Jamba Reasoning 3B is Q4_K_M, which balances quality and memory efficiency.
What speed will ai21labs AI21 Jamba Reasoning 3B run at on RTX A4000 16GB?
On RTX A4000 16GB, ai21labs AI21 Jamba Reasoning 3B achieves approximately 42.0 tokens per second decode speed with a time-to-first-token of 4610ms using Q4_K_M quantization.
Can RTX A4000 16GB run ai21labs AI21 Jamba Reasoning 3B for coding?
For coding workloads, ai21labs AI21 Jamba Reasoning 3B on RTX A4000 16GB receives a C grade with 42.0 tok/s and 517K context.
What context window can ai21labs AI21 Jamba Reasoning 3B use on RTX A4000 16GB?
On RTX A4000 16GB, ai21labs AI21 Jamba Reasoning 3B can safely use up to 517K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.
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