Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | DeepSeek V4 Pro (Reasoning, Max Effort) | GLM-4.6V (Reasoning) |
|---|---|---|
| Input ($/M tokens) | $0.435 | $0.3 |
| Output ($/M tokens) | $0.87 | $0.9 |
Verdict. DeepSeek V4 Pro (Reasoning, Max Effort) wins the overall benchmark matchup 7–4 across 11 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 1.0× the per-million-token cost, DeepSeek V4 Pro (Reasoning, Max Effort) is meaningfully cheaper if your traffic is output-heavy (long completions, document generation, agent loops). DeepSeek V4 Pro (Reasoning, Max Effort) makes more sense when output volume is low and absolute reasoning quality justifies the premium.
Strengths. DeepSeek V4 Pro (Reasoning, Max Effort) is strongest on GPQA Diamond (89%), IFBench (76%), Coding Index (59.4). GLM-4.6V (Reasoning) leads on AIME 2025 (85%), Math Index (85.3), MMLU-Pro (80%).
Speed. On throughput, DeepSeek V4 Pro (Reasoning, Max Effort) generates tokens at 71 tok/s versus 0 tok/s — about 100% faster. On time-to-first-token, GLM-4.6V (Reasoning) responds in 0ms vs 1021ms, which matters most for chat-style UIs.
Provider. DeepSeek and Z AI sell to overlapping but distinct developer audiences: DeepSeek tends to ship frontier reasoning models with premium positioning, while Z AI 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 Pro (Reasoning, Max Effort) costs $26.10 ($313/year); GLM-4.6V (Reasoning) costs $22.50 ($270/year). At a smaller 5M-input/2M-output scale (single-developer tool or prototype): DeepSeek V4 Pro (Reasoning, Max Effort) ≈ $3.92/run, GLM-4.6V (Reasoning) ≈ $3.30/run. At agent/realtime scale (200M input / 100M output per million requests): DeepSeek V4 Pro (Reasoning, Max Effort) ≈ $174/run, GLM-4.6V (Reasoning) ≈ $150/run. GLM-4.6V (Reasoning) 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.
Head-to-head deltas
Data from Artificial Analysis API — 12 benchmarks
GLM-4.6V (Reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $0.45/M tokens vs $0.54/M for DeepSeek V4 Pro (Reasoning, Max Effort).
DeepSeek V4 Pro (Reasoning, Max Effort) wins 7 out of 12 benchmarks compared to 4 for GLM-4.6V (Reasoning). See the detailed benchmark chart above for per-category results.
DeepSeek V4 Pro (Reasoning, Max Effort) generates tokens faster at 71 tok/s vs 0 tok/s. However, GLM-4.6V (Reasoning) has lower time-to-first-token (0.00s vs 1.02s).
Choose based on your priorities: GLM-4.6V (Reasoning) for lower cost, DeepSeek V4 Pro (Reasoning, Max Effort) for stronger benchmark performance, and DeepSeek V4 Pro (Reasoning, Max Effort) for faster generation. For latency-sensitive apps, check the TTFT comparison above.