Compare · ModelsLive · 2 picked · head to head
DeepSeek V3.1 vs LongCat Flash Chat
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
DeepSeek V3.1 wins on 1/1 benchmarks
DeepSeek V3.1 wins 1 of 1 shared benchmarks. Leads in arena.
Category leads
arena·DeepSeek V3.1
Hype vs Reality
Attention vs performance
DeepSeek V3.1
#88 by perf·no signal
LongCat Flash Chat
#43 by perf·no signal
Best value
LongCat Flash Chat
1.1x better value than DeepSeek V3.1
DeepSeek V3.1
113.6 pts/$
$0.45/M
LongCat Flash Chat
119.6 pts/$
$0.50/M
Vendor risk
Mixed exposure
One or more vendors flagged
DeepSeek
$3.4B·Tier 1
meituan
private · undisclosed
Head to head
1 benchmark · 2 models
DeepSeek V3.1LongCat Flash Chat
Chatbot Arena Elo · Overall
DeepSeek V3.1 leads by +16.8
DeepSeek V3.1
1417.9
LongCat Flash Chat
1401.1
Full benchmark table
| Benchmark | DeepSeek V3.1 | LongCat Flash Chat |
|---|---|---|
Chatbot Arena Elo · Overall | 1417.9 | 1401.1 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.15 | $0.75 | 33K tokens (~16 books) | $3.00 | |
| $0.20 | $0.80 | 131K tokens (~66 books) | $3.50 |
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