DeepSeek

DeepSeek Chat

Vérifié par l’équipe de recherche de GetInfoUsDernière révision : October 2026Politique éditoriale
Modèle de Base à Poids OuvertsOfficial Source Verified ↗
50
Intelligence Index

DeepSeek Chat de DeepSeek est un modèle d’IA conçu pour l’auto-hébergement sur infrastructure privée, le fine-tuning et la souveraineté des données, offrant une fenêtre de contexte de 1M, une vitesse de 75 tokens/s, un indice d’intelligence de 50/100 et un tarif de $0.28/$0.42 par million de tokens.

Technical Specifications

Provider
DeepSeek
Category
open-source
Release Date
2025-12
Knowledge Cutoff
September 2025
Architecture
Multi-Head Latent Attention (MLA) Sparse MoE
Parameters
671B Total (37B Active)
Context Window
1M tokens
Max Output
16K tokens
Cached Input Price
$0.028 / 1M tokens
Batch API Discount
50% off async batch
Consumer Subscription
Free / Self-Hosted
Reasoning Mode
No (Standard)
Reasoning Effort Control
Fixed
Tool Calling
Yes
Structured Outputs
Yes
Open Weights
Yes (Open Source / Self-Hostable)
Input Modalities
text
Output Modalities
text
Official Documentation
Visit Official Docs ↗

Data Privacy, Licensing & Deployment Governance

API Data Training Policy
100% Isolated when self-hosted on private GPUs or VPC
Model License & Commercial Rights
Permissive Open-Weights (Apache 2.0 / MIT Commercial)
Deployment & Cloud Availability
Self-Hosted GPU (vLLM / Ollama), Private VPC, or Managed Serverless API
Output Ownership
Full commercial ownership of generated outputs

Official Provider Release Intelligence, API Quotas & Agentic Specs

Compare Multi-Models Side-by-Side →
Official API Model ID (SDK String)
deepseek-chat
Supported SDK & API Protocol
OpenAI-Compatible REST / vLLM / SGLang / HuggingFace TGI
Lifecycle & Deprecation Status
Active GA (Guaranteed support through 2027+)
Production Rate Limits (RPM & TPM)
Unlimited (Hardware-bound on self-hosted GPU) / 10,000 RPM Cloud · Unlimited local throughput / 10M+ TPM Managed Cloud
Long-Context Pricing Tier (>128K / >200K)
Flat rate ($0.28/1M in) across full 1000K window
Prompt Cache Write & TTL Policy
Automatic prefix caching at $0.028/1M (no extra cache-write fee)
Computer Use & Browser GUI Agent
API / CLI Tool-Use & DOM Agent ready (no raw pixel desktop click loop)
MCP & Parallel Tool Calling
Native MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema
Web Search Grounding & Code Sandbox
Supported via external Tavily/Exa Search & E2B/Docker Sandbox tools
Fine-Tuning & Distillation Support
Full Weights SFT, LoRA, QLoRA, DPO & GRPO RL (Unsloth / Axolotl / Llama-Factory)
Multimodal Tokenization Billing
Text BPE (~4 chars/token)
Weights Precision & Quantization
BF16 / FP16, FP8 Dynamic, INT4 AWQ / GPTQ, GGUF (Q4_K_M / Q8_0)
Minimum GPU VRAM Requirement
416 GB VRAM (4-bit Quantized) · 1443 GB VRAM (Native BF16)
Supported Inference Engines
vLLM, SGLang, Ollama, llama.cpp, TensorRT-LLM, HuggingFace TGI
System Card & Safety Framework
Open-Weights System Card + Customizable Guardrail Layer (Llama Guard / ShieldGemma)
Enterprise Compliance (SOC2 / HIPAA / ZDR)
100% Air-Gapped On-Premises / Private VPC · Full HIPAA, GDPR & SOC2 Control
Engineering & Pricing Workbench

DeepSeek Chat Cost, Context, Hardware & API Integration

500 / day
4,000 tok
1,000 tok
Conversation Depth (History Re-billing):1 Turn (Single-Shot)
50%
Estimated Monthly API Cost (30 Days)
$15.54$23.10
Monthly Savings: $7.56 (Caching/Batch)
Subscription ($20/mo) vs API

Pay-as-you-go API is cheaper for this volume (saves $4.46/mo vs $20 flat plan).

Break-even point: ~644 requests/day equals $20/month.

Same Monthly Workload Cost Across Popular Reference Models

DeepSeek Chat (Active)
$15.54
/ month
Gemini 2.5 Flash
$18.00
/ month
DeepSeek V3
$32.70
/ month
GPT-4o
$300.00
/ month
Claude 3.7 Sonnet
$405.00
/ month

Live Prompt Paste Tokenizer & Cost Counter

Paste real system instructions, JSON schemas, or code to measure BPE token counts across tokenizers.

Chars / Words
175 / 24
OpenAI o200k
~46 tok
Claude BPE
~49 tok
Llama / DeepSeek
~51 tok

Hybrid Prompt Routing Cascade Simulator

Route routine queries to a fast lightweight model ($0.15/1M) and escalate only complex reasoning turns to DeepSeek Chat:

Cascaded Monthly Bill:$17.39/mo
This model is already priced at or below the fast router baseline.

Benchmark Scores & 6-Axis Capability Radar

Benchmark Encyclopedia
Coding (62)Reasoning (75)Knowledge (80)Speed (50)Context (100)Cost Value (94)
DeepSeek Chat2026 Frontier Median
SWE-bench Verified
54%
GPQA Diamond
65%
MMLU-Pro
79.5%
HumanEval
92%
Humanity's Last Exam
10.8%
Terminal-Bench
36%
SciCode
33.5%
LiveCodeBench
56.5%
AIME
74%
Long-Context Reasoning
82.5%
Chatbot Arena Elo
1335pts

Strengths

  • Fenêtre de contexte de 1M et capacité de sortie maximale de 16K tokens (SWE-bench Verified 54% · GPQA Diamond 65%)
  • Débit rapide de 75 tokens/seconde avec une latence au premier token (TTFT) de 520 ms
  • Poids ouverts (671B Total (37B )) permettant un déploiement sur site ou cloud privé via vLLM, SGLang ou Ollama

Limitations & Trade-offs

  • Nécessite des serveurs GPU dotés de suffisamment de mémoire VRAM pour l’inférence locale à pleine précision
  • Sur les problèmes de recherche fondamentale très complexes, les modèles de raisonnement lourd restent supérieurs

Editorial Assessment

Alliant un indice d’intelligence de 50/100, un contexte de 1M et un débit de 75 tok/s, DeepSeek Chat s’impose comme une valeur sûre de la gamme DeepSeek.

Best for: Conçu pour l’auto-hébergement sur infrastructure privée, le fine-tuning et la souveraineté des données, l’intégration RAG et les pipelines de production évolutifs.

Frequently Asked Questions about DeepSeek Chat

How much does the DeepSeek Chat API cost per 1M tokens?+

DeepSeek Chat by DeepSeek is priced at $0.28 per 1M input tokens and $0.42 per 1M output tokens. With prompt caching enabled, cached input tokens cost $0.028 per 1M tokens, and asynchronous Batch API requests receive a 50% discount.

Should I use a $20/month subscription or the DeepSeek Chat pay-as-you-go API?+

A flat $20/month consumer subscription is predictable for daily interactive chat and manual coding. However, if you are building software, running automated workflows, or sending low-to-moderate volume with prompt caching enabled, the pay-as-you-go API is typically far more cost-effective and offers higher rate limits without manual UI caps.

How many words and pages fit in DeepSeek Chat's context window?+

DeepSeek Chat features a 1M tokens context window, which equals approximately 750,000 English words or ~2,000 standard single-spaced pages in a single prompt. Its maximum output generation per turn is 16,384 tokens.

Can I run DeepSeek Chat locally on my own GPU (Open Weights)?+

Yes, DeepSeek Chat (671B Total (37B Active)) releases open weights that can be self-hosted locally or on private cloud GPUs using vLLM, Ollama, SGLang, or llama.cpp.

Does DeepSeek train on data sent to the DeepSeek Chat API, and is commercial use allowed?+

100% Isolated when self-hosted on private GPUs or VPC. License tier: Permissive Open-Weights (Apache 2.0 / MIT Commercial). Full commercial ownership of generated outputs. Supported deployment channels include: Self-Hosted GPU (vLLM / Ollama), Private VPC, or Managed Serverless API.

How does DeepSeek Chat perform on coding and reasoning benchmarks?+

DeepSeek Chat achieves a composite Intelligence Index of 50/100, scoring 54% on SWE-bench Verified, 65% on GPQA Diamond, 79.5% on MMLU-Pro, and 1335 pts on Chatbot Arena Elo.

What is DeepSeek Chat best used for?+

DeepSeek Chat is best suited for: Conçu pour l’auto-hébergement sur infrastructure privée, le fine-tuning et la souveraineté des données, l’intégration RAG et les pipelines de production évolutifs.. Assessment: Alliant un indice d’intelligence de 50/100, un contexte de 1M et un débit de 75 tok/s, DeepSeek Chat s’impose comme une valeur sûre de la gamme DeepSeek.

Les scores de benchmarks, tarifs par token et limites évoluent rapidement. Vérifiez toujours les spécifications actuelles sur la documentation officielle du fournisseur.

Sources: DeepSeek Official Pricing & Platform Updates (Late 2025)↗