FinderAtlas
Sign in

DeepSeek vs Langfuse

Features, pricing, ratings, and pros and cons, side by side.

Verdict

DeepSeek is listed under AI Assistants and Langfuse under Developer Tools. DeepSeek scores higher in FinderAtlas's editorial review (8.8 vs 8.4 out of 10), led by ease of use. Both have a free plan or trial. Only DeepSeek is available on Windows, macOS and iOS. Only Langfuse is available on CLI.

Best overall

DeepSeek

  • Software developers
  • Researchers and analysts
  • Students
  • AI engineers

Choose DeepSeek if

  • You want a tool built for Low-cost API integration.
  • Web chat and mobile apps are free.
  • API output costs from $0.60 per 1M tokens (Flash, off-peak), well below most frontier providers.

Choose Langfuse if

  • You want a tool built for production tracing and debugging of LLM apps and agents, prompt versioning, and systematic evaluation on real data.
  • MIT-licensed core with free self-hosting, avoiding vendor lock-in.
  • Covers tracing, prompt management and evaluation in one platform.
Best for beginners
Langfuse
Best for business
Langfuse

Features

17 features compared.

  • V4 model family
    DeepSeek
    Available
    Langfuse
    Not available
  • Thinking mode
    DeepSeek
    Available
    Langfuse
    Not available
  • Open weights
    DeepSeek
    Available
    Langfuse
    Not available
  • OpenAI and Anthropic compatible API
    DeepSeek
    Available
    Langfuse
    Not available
  • Tool calls and JSON output
    DeepSeek
    Available
    Langfuse
    Not available
  • Search and Fetch APIs
    DeepSeek
    Available
    Langfuse
    Not available
  • Agent tool integrations
    DeepSeek
    Available
    Langfuse
    Not available
  • DeepSeek Harness
    DeepSeek
    Available
    Langfuse
    Not available
  • Vision on Flash
    DeepSeek
    Available
    Langfuse
    Not available
  • Tracing
    DeepSeek
    Not available
    Langfuse
    Available
  • Evaluation
    DeepSeek
    Not available
    Langfuse
    Available
  • Prompt Management
    DeepSeek
    Not available
    Langfuse
    Available
  • Playground
    DeepSeek
    Not available
    Langfuse
    Available
  • Datasets and Experiments
    DeepSeek
    Not available
    Langfuse
    Available
  • Cost and Latency Dashboards
    DeepSeek
    Not available
    Langfuse
    Available
  • Open-Source Self-Hosting
    DeepSeek
    Not available
    Langfuse
    Available
  • APIs and MCP Servers
    DeepSeek
    Not available
    Langfuse
    Available

Pricing

Plans as listed by each vendor. Check their sites for current prices.

  • Pricing model
    DeepSeek
    Freemium
    Langfuse
    Freemium
  • Free plan
    DeepSeek
    Yes
    Langfuse
    Yes
  • Starting price
    DeepSeek
    $0
    Langfuse
    $0
  • Plans
    DeepSeek
    3 plans
    Langfuse
    4 plans

DeepSeek plans

  • Chat and App

    Most popular

    $0

    Free access to DeepSeek models on web, iOS and Android

    • Web chat
    • iOS and Android apps
    • Thinking mode
    • Web search
    • File upload

  • API: deepseek-flash

    $0.15/1M input tokens

    Pay as you go; $0.15 cache-miss input and $0.60 output per 1M tokens off-peak, double at peak

    • 1M context
    • 384K max output
    • Vision
    • Tool calls
    • JSON output

  • API: deepseek-v4-pro

    $0.66/1M input tokens

    Pay as you go; $0.66 cache-miss input and $1.98 output per 1M tokens off-peak, double at peak

    • 1M context
    • 384K max output
    • Tool calls
    • JSON output

Langfuse plans

  • Hobby

    $0

    Free cloud tier for individuals and early projects

    • 50k units/month
    • 30 days data access
    • 2 users
    • community support

  • Core

    $29/month

    Paid tier for small production teams

    • 100k units/month included
    • 90 days data access
    • unlimited users
    • in-app support

  • Pro

    $199/month

    Teams needing long retention and compliance reports

    • 100k units/month included
    • 3 years data access
    • data retention management
    • SOC 2 and ISO 27001 reports
    • HIPAA BAA available
    • high rate limits

  • Enterprise

    $2,499/month

    Large organizations with security and support requirements

    • Everything in Pro
    • audit logs
    • SCIM API
    • uptime and support SLAs
    • named lead support engineer
    • invoice or AWS Marketplace billing

Our ratings

Scored out of 10 by the Finder Atlas editorial team. Last reviewed November 2026.

DeepSeek
8.8overall
Langfuse
8.4overall

DeepSeek leads in 1 category and Langfuse in 0.

  • Reasoning & Logic

    DeepSeek
    8.8
    Langfuse
    Not rated

  • Coding & Syntax

    DeepSeek
    8.7
    Langfuse
    Not rated

  • Cost Efficiency

    DeepSeek
    9.6
    Langfuse
    Not rated

  • Long Context

    DeepSeek
    8.8
    Langfuse
    Not rated

  • Ease of Use

    DeepSeek leads by 0.2
    DeepSeek
    8.0
    Langfuse
    7.8

  • Feature Depth

    DeepSeek
    Not rated
    Langfuse
    8.8

  • Value for Money

    DeepSeek
    Not rated
    Langfuse
    8.7

  • Performance & Speed

    DeepSeek
    Not rated
    Langfuse
    8.4

  • Documentation & Support

    DeepSeek
    Not rated
    Langfuse
    8.5

Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.

Pros and cons

DeepSeek

Pros

  • Web chat and mobile apps are free
  • API output costs from $0.60 per 1M tokens (Flash, off-peak), well below most frontier providers
  • Open weights for V4 and earlier models on Hugging Face
  • 1M-token context and 384K max output on both API models
  • API works with both OpenAI and Anthropic SDKs and several coding agents

Cons

  • Peak-hour API rates are double the off-peak rates on weekday mornings UTC
  • deepseek-v4-pro does not support vision input
  • No image generation
  • Data is processed by a company based in China, which some organizations cannot accept

Langfuse

Pros

  • MIT-licensed core with free self-hosting, avoiding vendor lock-in.
  • Covers tracing, prompt management and evaluation in one platform.
  • Free Hobby tier with 50k units per month and no credit card required.
  • Over 100 integrations, plus OpenTelemetry for languages without a native SDK.
  • Core plan at $29/month with unlimited users.

Cons

  • Hobby is limited to 2 users and 30 days of data access.
  • SOC 2, ISO 27001 and HIPAA support start at the $199/month Pro plan, and SSO and RBAC need a $300/month add-on.
  • Audit logs, SCIM and SLAs are restricted to the $2,499/month Enterprise plan.
  • Usage-based unit overage adds cost for high-volume tracing.

Platforms

  • Web
    DeepSeek
    Supported
    Langfuse
    Supported
  • Windows
    DeepSeek
    Supported
    Langfuse
    Not supported
  • macOS
    DeepSeek
    Supported
    Langfuse
    Not supported
  • iOS
    DeepSeek
    Supported
    Langfuse
    Not supported
  • Android
    DeepSeek
    Supported
    Langfuse
    Not supported
  • API
    DeepSeek
    Supported
    Langfuse
    Supported
  • Browser Extension
    DeepSeek
    Not supported
    Langfuse
    Not supported
  • CLI
    DeepSeek
    Not supported
    Langfuse
    Supported

Integrations

DeepSeek

6 integrations
  • OpenAI SDK
  • Anthropic SDK
  • Claude Code
  • Codex
  • OpenCode
  • Hugging Face

Langfuse

23 integrations
  • LangChain
  • Vercel AI SDK
  • LiteLLM
  • Pydantic AI
  • Google ADK
  • CrewAI
  • LlamaIndex
  • OpenAI Agents
  • Mastra
  • OpenAI
  • Anthropic
  • Amazon Bedrock
  • Azure OpenAI
  • Google Gemini
  • Mistral AI
  • vLLM
  • Groq
  • Claude Code
  • Cursor
  • Dify
  • n8n
  • PostHog
  • OpenTelemetry

Company

  • Company
    DeepSeek
    DeepSeek
    Langfuse
    Langfuse
  • Founded
    DeepSeek
    2023
    Langfuse
    2023
  • Headquarters
    DeepSeek
    Hangzhou, China
    Langfuse
    Berlin, Germany
  • Listing
    DeepSeek
    Claimed
    Langfuse
    Claimed

Frequently asked questions

Is DeepSeek better than Langfuse?

It depends on your workflow. DeepSeek is built for Low-cost API integration. Langfuse is built for production tracing and debugging of LLM apps and agents, prompt versioning, and systematic evaluation on real data.

What are the key feature differences between DeepSeek and Langfuse?

DeepSeek: Free AI chat app and low-cost API running DeepSeek's open-weights V4 models. Langfuse: Open-source platform to trace, evaluate and improve LLM applications and agents.

Does DeepSeek or Langfuse have a free plan?

Yes, both do. DeepSeek is freemium and Langfuse is freemium, and each has a free plan or trial.

Which is cheaper, DeepSeek or Langfuse?

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.