Compare · ModelsLive · 2 picked · head to head
DeepSeek V4.1 Flash 1017 vs Qwen3.5 397B A17B
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
DeepSeek V4.1 Flash 1017 wins on 6/6 benchmarks
DeepSeek V4.1 Flash 1017 wins 6 of 6 shared benchmarks. Leads in agentic · knowledge · math.
Category leads
agentic·DeepSeek V4.1 Flash 1017knowledge·DeepSeek V4.1 Flash 1017math·DeepSeek V4.1 Flash 1017general·DeepSeek V4.1 Flash 1017
Hype vs Reality
Attention vs performance
DeepSeek V4.1 Flash 1017
#41 by perf·#4 by attention
Qwen3.5 397B A17B
#53 by perf·#1 by attention
Best value
DeepSeek V4.1 Flash 1017
8.9x better value than Qwen3.5 397B A17B
DeepSeek V4.1 Flash 1017
254.9 pts/$
$0.25/M
Qwen3.5 397B A17B
28.7 pts/$
$2.10/M
Vendor risk
Mixed exposure
One or more vendors flagged
DeepSeek
$3.4B·Tier 1
Alibaba (Qwen)
$293.0B·Tier 1
Head to head
6 benchmarks · 2 models
DeepSeek V4.1 Flash 1017Qwen3.5 397B A17B
APEX-Agents
DeepSeek V4.1 Flash 1017 leads by +44.9
APEX-Agents · evaluates AI agents on complex, multi-step tasks requiring planning, tool use, and autonomous decision-making in realistic environments.
DeepSeek V4.1 Flash 1017
69.8
Qwen3.5 397B A17B
24.9
Chess Puzzles
DeepSeek V4.1 Flash 1017 leads by +34.7
Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities.
DeepSeek V4.1 Flash 1017
43.2
Qwen3.5 397B A17B
8.5
FrontierMath-Tiers-1-3-v2-Private
DeepSeek V4.1 Flash 1017 leads by +42.1
DeepSeek V4.1 Flash 1017
75.0
Qwen3.5 397B A17B
32.9
GPQA diamond
DeepSeek V4.1 Flash 1017 leads by +9.5
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
DeepSeek V4.1 Flash 1017
94.7
Qwen3.5 397B A17B
85.2
Mystery Game Puzzles
DeepSeek V4.1 Flash 1017 leads by +34.1
DeepSeek V4.1 Flash 1017
43.8
Qwen3.5 397B A17B
9.7
OTIS Mock AIME 2024-2025
DeepSeek V4.1 Flash 1017 leads by +10.6
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
DeepSeek V4.1 Flash 1017
99.4
Qwen3.5 397B A17B
88.9
Full benchmark table
| Benchmark | DeepSeek V4.1 Flash 1017 | Qwen3.5 397B A17B |
|---|---|---|
APEX-Agents APEX-Agents · evaluates AI agents on complex, multi-step tasks requiring planning, tool use, and autonomous decision-making in realistic environments. | 69.8 | 24.9 |
Chess Puzzles Chess Puzzles · tests strategic and tactical reasoning by having models solve chess puzzle positions, evaluating lookahead and pattern recognition abilities. | 43.2 | 8.5 |
FrontierMath-Tiers-1-3-v2-Private | 75.0 | 32.9 |
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 94.7 | 85.2 |
Mystery Game Puzzles | 43.8 | 9.7 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 99.4 | 88.9 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.01 | $0.50 | 1.0M tokens (~524 books) | $1.29 | |
| $0.60 | $3.60 | 262K tokens (~131 books) | $13.50 |
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