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DeepSeek Chat V3.1 vs DeepSeek V3

Capability, benchmark, and verified hosting price comparison.

Quick verdict

Cheapest hosting
Tie— both at $0.477 / 1M blended tokens
Context window
DeepSeek Chat V3.1— 131,072 tokens vs 65,536

Derived from public benchmarks and verified hosting prices. Benchmark wins count only where both models have a score; direction respects each benchmark’s higher-is-better flag.

DeepSeek Chat V3.1

by DeepSeek · DeepSeek V3

Context
131,072 tokens
Open weight
Yes
License
DeepSeek License
Params
671.0B
Modalities
text

DeepSeek V3

by DeepSeek AI · DeepSeek

Context
65,536 tokens
Open weight
Yes
License
DeepSeek License v1.0
Params
671.0B
Modalities
text

Benchmarks

BenchmarkDeepSeek Chat V3.1DeepSeek V3
HumanEval—0.825
MMLU—0.887

Cheapest verified hosting

DeepSeek Chat V3.1 cheapest
DeepSeek
$0.477/ 1M tokens (blended)
Input
$0.270
Output
$1.100
Context
131,072 tok
DeepSeek V3 cheapest
DeepSeek
$0.477/ 1M tokens (blended)
Input
$0.270
Output
$1.100
Context
65,536 tok
Latency p50
480 ms