Model

DeepSeek-V3.1 (Non-Thinking)

OPEN

DeepSeek · DeepSeek-V3 family · released Aug 21, 2025

Non-thinking mode of the hybrid V3.1 checkpoint; served via deepseek-chat, now deprecated in favor of V3.2/V4

ReasoningCodingVisionFunction callingTool useAgentic

1517.5

Elo · rank #135

Parameters

671B

Active params

37B (MoE)

Context

128K tokens

Architecture

Mixture-of-Experts (671B total / 37B active) — DeepSeekMoE + Multi-head Latent Attention, hybrid think/non-think chat template

License

MIT

Languages

—

API price (in/out)

$0.56 / $1.68

Modalities

text

Benchmark results

Bar shows position within the tracked field; marker = field best

Aider PolyglotCoding68.4%#15

best: Claude Opus 4.5 · 89.4%

AIMEMath66.3%#109

best: GPT-5.2 · 100.0%

Arena EloHuman preference1418#16

best: Claude Fable 5 · 1505

GPQA DiamondReasoning74.9%#112

best: GPT-6 Astra · 96.0%

Humanity's Last ExamReasoning6.0%#118

best: Claude Opus 5 · 64.7%

IFBenchReasoning38.0%#58

best: MiniMax M3 · 83.0%

LiveCodeBenchCoding56.4%#110

best: DeepSeek-V4-Pro (Think Max) · 93.5%

MMLU-ProKnowledge83.7%#35

best: Claude Fable 5 · 91.5%

MMLU-ReduxKnowledge91.8%#19

best: Qwen3.7-Max · 95.0%

SWE-bench VerifiedCoding66.0%#71

best: Claude Opus 5 · 96.0%

Terminal-BenchCoding31.3%#11

best: Claude Opus 4.5 (High) · 59.3%

Run it locally

VRAM @ Q4

405 GB

VRAM @ FP16

1340 GB

Fits on (Q4)

Multi-node cluster required

Exceeds a single RTX 4090's 24GB VRAM even at Q4 (~405GB); requires multi-GPU or heavy CPU offload

Quantizations

GGUF · FP8

Fine-tune it

Permissive

QLoRA456.3 GB4× H200 141GB

LoRA1429.2 GB8× B200 192GB

Full fine-tune10769.5 GBbeyond 8× B200

QLoRA SFT on ~10k samples ≈ $19.14 (4× H200 141GB)

Plan a fine-tune →

DeepSeek-V3 family

Elo progression across releases

DeepSeek-V3 671BDec 20241227.5 DeepSeek-V3-0324Mar 20251346.8 DeepSeek-V3.1 (Non-Thinking)Aug 20251517.5 DeepSeek-V3.1 (Thinking)Aug 20251890.4 DeepSeek-V3.2-ExpSep 20251853.8

Resources

HFdeepseek-ai/DeepSeek-V3.1 GHdeepseek-ai/DeepSeek-V3 DOCSapi-docs.deepseek.com APIAvailable via DeepSeek API

API price $0.56/$1.68 · each benchmark row carries its own source badge (see methodology)