Compare · ModelsLive · 2 picked · head to head
DeepSeek V4 Pro vs Qwen3.5 397B A17B
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
DeepSeek V4 Pro wins on 4/4 benchmarks
DeepSeek V4 Pro wins 4 of 4 shared benchmarks. Leads in speed · arena.
Category leads
speed·DeepSeek V4 Proarena·DeepSeek V4 Pro
Hype vs Reality
Attention vs performance
DeepSeek V4 Pro
#13 by perf·no signal
Qwen3.5 397B A17B
#5 by perf·no signal
Best value
DeepSeek V4 Pro
2.0x better value than Qwen3.5 397B A17B
DeepSeek V4 Pro
112.8 pts/$
$0.65/M
Qwen3.5 397B A17B
55.3 pts/$
$1.42/M
Vendor risk
Mixed exposure
One or more vendors flagged
DeepSeek
$3.4B·Tier 1
Alibaba (Qwen)
$293.0B·Tier 1
Head to head
4 benchmarks · 2 models
DeepSeek V4 ProQwen3.5 397B A17B
Artificial Analysis · Agentic Index
DeepSeek V4 Pro leads by +16.5
Artificial Analysis Agentic Index · a composite score measuring how well a model performs in agentic workflows · multi-step tool use, planning, error recovery, and autonomous task completion. Aggregates results from multiple agentic benchmarks including SWE-bench, tool-use tests, and planning evaluations. The canonical single-number metric for "how good is this model as an agent?"
DeepSeek V4 Pro
36.4
Qwen3.5 397B A17B
19.9
Artificial Analysis · Coding Index
DeepSeek V4 Pro leads by +11.1
Artificial Analysis Coding Index · a composite score that aggregates performance across multiple coding benchmarks into a single index. Tracks code generation quality, debugging ability, multi-language competence, and real-world software engineering tasks. Used by Artificial Analysis to rank model coding capability in a normalized, comparable format. Useful for developers choosing between models for coding-heavy workloads.
DeepSeek V4 Pro
59.4
Qwen3.5 397B A17B
48.2
Artificial Analysis · Quality Index
DeepSeek V4 Pro leads by +10.6
DeepSeek V4 Pro
44.3
Qwen3.5 397B A17B
33.7
Chatbot Arena Elo · Overall
DeepSeek V4 Pro leads by +12.2
DeepSeek V4 Pro
1455.9
Qwen3.5 397B A17B
1443.7
Full benchmark table
| Benchmark | DeepSeek V4 Pro | Qwen3.5 397B A17B |
|---|---|---|
Artificial Analysis · Agentic Index Artificial Analysis Agentic Index · a composite score measuring how well a model performs in agentic workflows · multi-step tool use, planning, error recovery, and autonomous task completion. Aggregates results from multiple agentic benchmarks including SWE-bench, tool-use tests, and planning evaluations. The canonical single-number metric for "how good is this model as an agent?" | 36.4 | 19.9 |
Artificial Analysis · Coding Index Artificial Analysis Coding Index · a composite score that aggregates performance across multiple coding benchmarks into a single index. Tracks code generation quality, debugging ability, multi-language competence, and real-world software engineering tasks. Used by Artificial Analysis to rank model coding capability in a normalized, comparable format. Useful for developers choosing between models for coding-heavy workloads. | 59.4 | 48.2 |
Artificial Analysis · Quality Index | 44.3 | 33.7 |
Chatbot Arena Elo · Overall | 1455.9 | 1443.7 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.43 | $0.87 | 1.0M tokens (~524 books) | $5.44 | |
| $0.39 | $2.45 | 256K tokens (~128 books) | $9.01 |