Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | DeepSeek V4 Flash (Non-reasoning) | Ling 2.6 Flash |
|---|---|---|
| Input ($/M tokens) | $0.14 | $0.1 |
| Output ($/M tokens) | $0.28 | $0.3 |
Verdict. DeepSeek V4 Flash (Non-reasoning) wins the overall benchmark matchup 5–2 across 7 overlapping categories, but raw benchmark score is only one input to the decision.
Pricing. Both models sit in the budget bracket for output-token pricing. At 0.9× the per-million-token cost, DeepSeek V4 Flash (Non-reasoning) is meaningfully cheaper if your traffic is output-heavy (long completions, document generation, agent loops). DeepSeek V4 Flash (Non-reasoning) makes more sense when output volume is low and absolute reasoning quality justifies the premium.
Strengths. DeepSeek V4 Flash (Non-reasoning) is strongest on GPQA Diamond (72%), IFBench (47%), SciCode (37%). Ling 2.6 Flash leads on GPQA Diamond (59%), IFBench (57%), SciCode (27%).
Speed. On throughput, DeepSeek V4 Flash (Non-reasoning) generates tokens at 113 tok/s versus 89 tok/s — about 21% faster. On time-to-first-token, Ling 2.6 Flash responds in 808ms vs 991ms, which matters most for chat-style UIs.
Provider. DeepSeek and InclusionAI sell to overlapping but distinct developer audiences: DeepSeek tends to ship frontier reasoning models with premium positioning, while InclusionAI often prices more aggressively. Your existing vendor relationships, billing, and SLA preferences may matter as much as the raw numbers above.
Workload cost. Workload scenarios (per million requests at 30M input + 15M output tokens): DeepSeek V4 Flash (Non-reasoning) costs $8.40 ($101/year); Ling 2.6 Flash costs $7.50 ($90/year). At a smaller 5M-input/2M-output scale (single-developer tool or prototype): DeepSeek V4 Flash (Non-reasoning) ≈ $1.26/run, Ling 2.6 Flash ≈ $1.10/run. At agent/realtime scale (200M input / 100M output per million requests): DeepSeek V4 Flash (Non-reasoning) ≈ $56/run, Ling 2.6 Flash ≈ $50/run. Ling 2.6 Flash becomes more attractive at higher volume — the absolute per-token pricing difference compounds when you ship at scale.
Recommendation. Both models have legitimate use cases — the right answer depends on whether you are optimizing for benchmark ceiling, latency, or unit cost. Start with the cheaper / faster model, evaluate against your specific task, and only switch if the upgrade shows a meaningful lift.
Data from Artificial Analysis API — 12 benchmarks
Ling 2.6 Flash is cheaper overall. Its blended price (3:1 input/output ratio) is $0.15/M tokens vs $0.17/M for DeepSeek V4 Flash (Non-reasoning).
DeepSeek V4 Flash (Non-reasoning) wins 5 out of 12 benchmarks compared to 2 for Ling 2.6 Flash. See the detailed benchmark chart above for per-category results.
DeepSeek V4 Flash (Non-reasoning) generates tokens faster at 113 tok/s vs 89 tok/s. However, Ling 2.6 Flash has lower time-to-first-token (0.81s vs 0.99s).
Choose based on your priorities: Ling 2.6 Flash for lower cost, DeepSeek V4 Flash (Non-reasoning) for stronger benchmark performance, and DeepSeek V4 Flash (Non-reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.