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Model comparison

Claude Sonnet 4.6 vs DeepSeek V3.1

Not a benchmark table. This puts pricing, context, interface fit, and key visibility into one decision card.

Provider
Anthropic / DeepSeek
global / china
Context
1M / 128K
text+image->text / text->text
Input price
$3.00 / $0.20
per 1M tokens
Output price
$15.00 / $0.30
per 1M tokens
Left model
Claude Sonnet 4.6
Anthropic
FamilyClaude
Modalitytext+image->text

高质量写作与复杂分析强项,适合企业内容与知识场景。

Right model
DeepSeek V3.1
DeepSeek
FamilyDeepSeek
Modalitytext->text

适合做价格带和版本代际对比。

Comparison summary

How to choose first

This is a cross-provider comparison. Start with the job boundary, then verify what your key can actually see.

On the listed price snapshot, DeepSeek V3.1 is cheaper on combined input and output, but real routing, discounts, and limits still matter.

Claude Sonnet 4.6 has the larger context window, which helps with long documents, knowledge bases, logs, and multi-turn workflows.

Decision boundary

Do not start with which model is absolutely stronger. Start with the boundary: cost, context, speed, quality, ecosystem, or supply stability.

  • Claude Sonnet 4.6 is worth checking first when the Claude family, 1M context, and text+image->text capability match the job.
  • DeepSeek V3.1 is worth checking first when the DeepSeek family, 128K context, and text->text capability match the job.

Key checking route

If you already hold a key, the valuable check is provider identity, callable models, and whether balance, limits, or subscription status are visible.

  • Anthropic: Claude Sonnet 4.6, Claude, text+image->text
  • DeepSeek: DeepSeek V3.1, DeepSeek, text->text

Commercial fit

Commercially, do not look at model names alone. Combine price, limits, region, upstream stability, and ongoing monitoring.

  • Claude Sonnet 4.6: 高质量写作与复杂分析强项,适合企业内容与知识场景。
  • DeepSeek V3.1: 适合做价格带和版本代际对比。