Solar Open 2 250B needs ~175.7 GB VRAM. NVIDIA GB200 192GB has 192.0 GB. With Q4_K_M quantization, expect ~127 tok/s.
Operating mode
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
Fit status
Tight fit
Decode
137.6 tok/s
TTFT
1407 ms
Safe context
420K
Memory
173.5 GB / 192.0 GB
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.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | S | Tight fit | 126.5 tok/s | 835 ms | 105K |
| Coding | S | Tight fit | 126.5 tok/s | 1531 ms | 105K |
| Agentic Coding | S | Tight fit | 126.5 tok/s | 2226 ms | 105K |
| Reasoning | S | Tight fit | 126.5 tok/s | 1809 ms | 105K |
| RAG | S | Tight fit | 126.5 tok/s | 2783 ms | 105K |
Inference speed
Estimated decode speed (tokens/sec) for Solar Open 2 250B at Q4_K_M across popular GPUs and Apple Silicon, including multi-GPU rigs, using the fastest local runtime per device. Fastest is Mac Studio M3 Ultra 256GB at ~18 tok/s. Speed is memory-bandwidth bound, so cards that fit the whole model in VRAM run far faster than ones that offload to system RAM.
| GPU / Mac | Memory | Quant | Speed (tok/s) | Fits? |
|---|---|---|---|---|
Mac Studio M3 Ultra 256GB | 256 GB | Q4_K_M | 17.7 | Offloads |
Mac Studio M2 Ultra 128GB | 128 GB | Q4_K_M | 6.9 | Too big |
Mac Studio M1 Ultra 128GB | 128 GB | Q4_K_M | 6.6 | Too big |
MacBook Pro M4 Max 128GB | 128 GB | Q4_K_M | 5.1 | Too big |
MacBook Pro M4 Max 64GB | 64 GB | Q4_K_M | 4.9 | Too big |
| 32 GB | Q4_K_M | 3.7 | Too big | |
2× RX 7900 XTX 24GB | 48 GB | Q4_K_M | 3.6 | Too big |
MacBook Pro M3 Max 64GB | 64 GB | Q4_K_M | 3.4 | Too big |
MacBook Pro M1 Max 64GB | 64 GB | Q4_K_M | 3.1 | Too big |
MacBook Pro M4 Pro 48GB | 48 GB | Q4_K_M | 3.0 | Too big |
| 48 GB | Q4_K_M | 2.5 | Too big | |
| 24 GB | Q4_K_M | 2.4 | Too big | |
RX 7900 XTX 24GB | 24 GB | Q4_K_M | 2.1 | Too big |
| 48 GB | Q4_K_M | 2.1 | Too big | |
| 16 GB | Q4_K_M | 2.0 | Too big | |
| 24 GB | Q4_K_M | 2.0 | Too big | |
| 12 GB | Q4_K_M | 2.0 | Too big | |
| 12 GB | Q4_K_M | 2.0 | Too big | |
| 8 GB | Q4_K_M | 2.0 | Too big | |
| 48 GB | Q4_K_M | 2.0 | Too big |
Estimates for single-stream decoding at Q4_K_M; real tokens/sec varies with prompt length, context, batch size, and runtime build. Prompt processing (prefill) is faster than the decode figures shown here.
How Solar Open 2 250B (250.3000030517578B params) fits at each quantization level on NVIDIA GB200 192GB (192.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q1_0_G128 | 1.125 | 36.0 GB | Very Low | A79 |
Q2_0_G128 | 1.71 | 66.8 GB | Low | A82 |
Q2_K | 2 | 97.6 GB | Low | S86 |
Q3_K_S | 3 | 122.6 GB | Low | S86 |
NVFP4 | 4 | 140.2 GB | Medium | S86 |
Q4_K_MBest for your GPU | 4 | 152.7 GB | Medium | S86 |
Q5_K_M | 5 | 180.2 GB | High | F0 |
Q6_K | 6 | 205.2 GB | High | F0 |
Q8_0 | 8 | 267.8 GB | Very High | F0 |
F16 | 16 | 513.1 GB | Maximum | F0 |
Copy-paste commands to run Solar Open 2 250B on your machine.
Run
docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
--hf-repo "upstage/Solar-Open2-250B" \
--hf-file "Solar-Open2-250B-Q4_K_M.gguf" \
-c 4096 -ngl 99Your hardware
| Model | Params | Grade | Decode | Capabilities |
|---|---|---|---|---|
| 284B | S | 144.8 tok/s | ||
| 295B | A | 87.1 tok/s |
Yes, NVIDIA GB200 192GB can run Solar Open 2 250B with a S grade (Tight fit). Expected decode speed: 126.5 tok/s.
Solar Open 2 250B (250.3000030517578B parameters) requires approximately 175.7 GB of memory with Q4_K_M quantization.
The recommended quantization for Solar Open 2 250B is Q4_K_M, which balances quality and memory efficiency.
On NVIDIA GB200 192GB, Solar Open 2 250B achieves approximately 126.5 tokens per second decode speed with a time-to-first-token of 1531ms using Q4_K_M quantization.
For coding workloads, Solar Open 2 250B on NVIDIA GB200 192GB receives a S grade with 126.5 tok/s and 105K context.
On NVIDIA GB200 192GB, Solar Open 2 250B can safely use up to 105K tokens of context. The model's official context limit is 1.0M, but available memory constrains the safe maximum.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/solar-open2-250b-on-gb200-192gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
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