Qwen 3.8 Flash Next 176B-A6B — B200 vs Vera Rubin NVL72 Performance per Dollar
Cost per million tokens of B200 (NVIDIA Blackwell) versus Vera Rubin NVL72 (NVIDIA Vera Rubin) on Qwen 3.8 Flash Next 176B-A6B. Large-hyperscaler-volume ownership TCO normalized by total tokens — performance per dollar across LLM workloads. Pick the more cost-efficient SKU at every target interactivity level. Use the chart controls below to switch sequences, precisions, and metrics — same interactions as the main inference chart.
AgentX replays real coding-agent sessions rather than fixed-length prompts, so context grows turn over turn and most of each request is served from cache instead of being recomputed. That turns the comparison into a systems question: KV transfer between nodes, prefix-aware routing, and cache capacity all move the curve alongside raw chip throughput. Fixed-sequence workloads stay the clean baseline for kernel and silicon performance, so the two scenarios answer different questions about the same hardware. Learn more about AgentX →
Near the low end of the 53–259 tok/s/user interactivity band — at 104 tok/s/user — B200 runs $0.01 per million tokens on Qwen 3.8 Flash Next 176B-A6B while Vera Rubin NVL72 runs $0.00. Vera Rubin NVL72 is the cheaper choice by 77%.
On Qwen 3.8 Flash Next 176B-A6B at 156 tok/s/user, the per-million math comes out to $0.01 for B200 and $0.01 for Vera Rubin NVL72; Vera Rubin NVL72 delivers 116% more total tokens per dollar.
At 207 tok/s/user on Qwen 3.8 Flash Next 176B-A6B, B200 costs $0.03 per million tokens; Vera Rubin NVL72 costs $0.01. Vera Rubin NVL72 is 168% more cost-efficient at this operating point. (Numbers reflect the default agentic-traces · fp4 selection for this URL — table and chart below update if you change sequence, precision, or model in the controls.)
Chip pricing (owning hyperscaler): B200 $1.73/chip/hr · Vera Rubin NVL72 $3.61/chip/hr. Source: SemiAnalysis Market July 2026 Pricing Surveys & AI Cloud TCO Model.
| Metric | Interactivity (tok/s/user) | Interactivity (tok/s/user) | Interactivity (tok/s/user) |
|---|---|---|---|
| Dollar per Million Tokens | B200:$0.009Vera Rubin NVL72:$0.005 | B200:$0.014Vera Rubin NVL72:$0.006 | B200:$0.026Vera Rubin NVL72:$0.010 |
| Concurrency | B200:~12Vera Rubin NVL72:~272 | B200:~7Vera Rubin NVL72:~265 | B200:~2Vera Rubin NVL72:~173 |
Inference Performance
Agentic inference metrics from the AgentX scenario and fixed-sequence inference metrics across models, hardware configurations, and serving parameters.
No data available
No measurements to plot for this selection. Review the benchmark controls above or adjust quick filters.