GPT-5.6 Luna vs Qwen 3.8 Flash Next
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: GPT-5.6 Luna or Qwen 3.8 Flash Next?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | GPT-5.6 Luna | Qwen 3.8 Flash Next | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $0.18 | $0.12 | Qwen 3.8 Flash Next is 1.5x cheaper |
| Output Cost / 1M Tokens | $0.72 | $0.48 | Qwen 3.8 Flash Next (50% lower) |
| Avg TTFT Response Latency | 90ms | 120ms | GPT-5.6 Luna (+30ms faster) |
| SWE-bench Verified (Coding) | 48.5% | 56.8% | Qwen 3.8 Flash Next (+8.3% lead) |
| Inference Value Score (IVR) | 99.9 / 100 | 99.9 / 100 | Qwen 3.8 Flash Next (+0 pts) |
Interactive Monthly Token Economics & ROI Forecaster
Model your expected production workload across prompt (input) and completion (output) tokens.
Estimated Monthly Spend
$0.18/1M in · $0.72/1M out
$0.12/1M in · $0.48/1M out
When to Choose GPT-5.6 Luna
Choose GPT-5.6 Luna when you need Real-time conversational agents, high-volume classification, intent detection, and low-latency interactive apps. and have an infrastructure budget aligned with $0.18/1M tokens.
When to Choose Qwen 3.8 Flash Next
Choose Qwen 3.8 Flash Next when you need Extreme token throughput multilingual coding, global document processing, and low-cost API scaling. and prioritize Alibaba Cloud ecosystem integration at $0.12/1M tokens.
Related Questions & Decision Factors
Which is cheaper: GPT-5.6 Luna or Qwen 3.8 Flash Next?
Qwen 3.8 Flash Next is cheaper at $0.12/1M input tokens compared to $0.18/1M for GPT-5.6 Luna.
Which model has lower latency: GPT-5.6 Luna or Qwen 3.8 Flash Next?
GPT-5.6 Luna delivers faster response times with an average TTFT of 90ms vs 120ms for Qwen 3.8 Flash Next.
When should you choose GPT-5.6 Luna?
Choose GPT-5.6 Luna when you need Real-time conversational agents, high-volume classification, intent detection, and low-latency interactive apps. and have an infrastructure budget aligned with $0.18/1M tokens.
When should you choose Qwen 3.8 Flash Next?
Choose Qwen 3.8 Flash Next when you need Extreme token throughput multilingual coding, global document processing, and low-cost API scaling. and prioritize Alibaba Cloud ecosystem integration at $0.12/1M tokens.