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DeepSeek · Open weights

DeepSeek V3/Deepseek Chat

Added Feb 27, 2025Open weights

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Use in the app

DeepSeek original V3 model, trained on nearly 15 trillion tokens, matches leading closed-source models at a far lower price. Quantized at FP8.

  • Tools
  • Structured output
  • PDF input
Input
Text
Output
Text
Discovery tier
Open weights

Pricing

USD per 1M tokens
Input
$0.10
Output
$0.43

Reference prices as published by the model provider. API example

Specifications

Context window
128K
Max output
8.2K
Average output (7 days)
293 tokens
Longer than 30% of 465 models

Side by side

DeepSeek V3/Deepseek Chat compared

Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.

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DeepSeek V3/Deepseek ChatDeepSeekThis modelDeepSeek R1 0528DeepSeekRemove
ProviderDeepSeekDeepSeek
Discovery tierOpen weightsOpen weights
AddedFeb 27, 2025May 28, 2025
Limits
Context window128K163.84KBest
Max output8.19K32.77KBest
Average output293 tokens1K tokens
Pricing, USD per 1M tokens
Input$0.10Best$0.50
Output$0.43Best$2.15
Cache read—$0.35
Performance
Throughput27.1 tok/s33.0 tok/sBest
Time to first token2.5 s1.3 sBest
Request success (24h)99.9%99.9%
Benchmark indexes
Intelligence Index16.0Best13.1
Math Index59.076.0Best
Capabilities
ReasoningNoYes
ToolsYesYes
Structured outputYesNo
PDF inputYesNo
Reasoning effort——

Public evaluations

Benchmarks

Independent evaluation results, with how each score ranks among the models in the Noumen catalog.

  • DeepSeek V3/Deepseek Chat
  • DeepSeek R1 0528

Intelligence Index

  • DeepSeek V3/Deepseek Chat16.0
  • DeepSeek R1 052813.1

DeepSeek V3/Deepseek Chat: Better than 40% of 326 scored models

3.8Catalog models by score55.1

Indexes

  • Math Index

    Composite of the math evaluations

    • DeepSeek V3/Deepseek Chat: 59.0
    • DeepSeek R1 0528: 76.0Top

Document reasoning

  • AA-LCRv1.1

    Reasoning across long documents

    • DeepSeek V3/Deepseek Chat: 45.7%
    • DeepSeek R1 0528: 55.7%Top

Reasoning and knowledge

  • Humanity’s Last Exam

    Expert-level questions across academic fields

    • DeepSeek V3/Deepseek Chat: 11.2%
    • DeepSeek R1 0528: 15.8%Top

  • GPQA Diamond

    Graduate-level science questions

    • DeepSeek V3/Deepseek Chat: 75.1%
    • DeepSeek R1 0528: 81.3%Top

  • MMLU-Pro

    Multi-subject knowledge and reasoning

    • DeepSeek V3/Deepseek Chat: 83.7%
    • DeepSeek R1 0528: 84.9%Top

  • IFBench

    Following precise output instructions

    • DeepSeek V3/Deepseek Chat: 49.0%Top
    • DeepSeek R1 0528: 39.6%

Coding

  • LiveCodeBench

    Recent competitive programming problems

    • DeepSeek V3/Deepseek Chat: 59.3%
    • DeepSeek R1 0528: 77.0%Top

Math

  • AIME 2025

    Competition mathematics, 2025 problems

    • DeepSeek V3/Deepseek Chat: 59.0%
    • DeepSeek R1 0528: 76.0%Top

  • AIME

    Competition mathematics

    • DeepSeek V3/Deepseek Chat: —
    • DeepSeek R1 0528: 89.3%

  • MATH-500

    Competition math problems

    • DeepSeek V3/Deepseek Chat: —
    • DeepSeek R1 0528: 98.3%

Legacy evaluations

  • Terminal-Bench Hard

    Earlier terminal task suite

    • DeepSeek V3/Deepseek Chat: 32.6%Top
    • DeepSeek R1 0528: 15.9%

  • τ²-Bench Telecom

    Tool use in a customer-support simulation

    • DeepSeek V3/Deepseek Chat: 78.9%Top
    • DeepSeek R1 0528: 36.5%

  • AA-LCR (unversioned)

    Long-context reasoning, earlier grading

    • DeepSeek V3/Deepseek Chat: 45.7%
    • DeepSeek R1 0528: 55.7%Top

Scores from Artificial Analysis, updated Oct 26, 2026. Artificial Analysis

Live routing data

Performance and reliability

Recent averages across requests routed for this model. Your own speed depends on prompt length, reasoning effort and load.

Throughput
27.1 tok/s
Faster than 18% of 250 models
Time to first token
2.5 s
Quicker than 67% of 250 models
Prompt cache hits
75.6%
Request success (24h)
99.9%
Reliable

Cache hits are the share of input tokens recently served from a prompt cache across all requests. They are not a forecast of your own hit rate.

Hourly request success · last 72 hoursLowest hour 98.2%
  • Healthy (98% or more)
  • Degraded (90–98%)
  • Down (under 90%)
  • No requests

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart
curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-chat",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'
import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="deepseek-chat",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

DeepSeek

Other DeepSeek models, starting with the same family.