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DeepSeek

DeepSeek

LLM Provider

Chinese AI lab offering frontier open-weight models at dramatically low prices.

Flagship2 models

ModelInput / 1MOutput / 1MContext
DeepSeek-V4.1-Flash
DeepSeek's Causal Encoder-Decoder MoE (552B total, 8B active prefill) cuts KV cache 8x. GPQA Diamond 90.9, Terminal-Bench 2.1: 90.6. $0.003/M input off-peak. MIT-licensed open weights.
$0.003$0.210400K
DeepSeek-V4
Latest DeepSeek flagship. 1M context, top-tier coding and math.
$0.300$0.6001.0M

Reasoning3 models

ModelInput / 1MOutput / 1MContext
DeepSeek-V4 Pro
DeepSeek V4 Pro reasoning model. Replaces deepseek-reasoner.
$0.435$0.8701.0M
DeepSeek-R1
Reasoning model. Output includes chain-of-thought.
$0.550$2.1964K
DeepSeek-R1-0528
Updated R1 with improved coding and longer output.
$0.550$2.1964K

Mid-range1 model

ModelInput / 1MOutput / 1MContext
DeepSeek-V4 Flash
Fast variant of V4. Incredible price-performance ratio.
$0.140$0.2801.0M

Legacy1 model

ModelInput / 1MOutput / 1MContext
DeepSeek-V3
Strong open-weight model at very low cost.
$0.140$0.28064K

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