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ClaudeSonnet 4.6

AnthropicのAIアシスタント — そのトーンと推論能力から開発者やライターに支持されています。

✍️Writing & chatFreemium · from $20

Capabilities

  • chat
  • reasoning
  • vision
  • artifacts
  • projects

Pricing tiers

Free
無料
Trial
  • +Sonnet access
  • +Limited messages
  • +Web + iOS + Android
おすすめ
Pro
$20/
Daily users
  • +Higher Sonnet usage
  • +Projects + artifacts
  • +Claude Code Pro tier
Max 5x
$100/
Power users
  • +5x Pro usage
  • +Highest model tier
  • +Long-running sessions
Team
$30/席/月
Small teams
  • +Shared projects
  • +Admin + SSO
  • +Usage analytics

Pros & cons

メリット
  • +Strongest writing tone in the category — preferred by writers and developers
  • +Artifacts + Projects make multi-turn work feel native
  • +Longer effective context than competitors on real workloads
デメリット
  • No native image generation; less polished voice than ChatGPT
  • Image attachments capped tighter than competitors
  • Smaller plugin ecosystem (MCP is closing the gap)

What is Claude?

Claude is a writing & chat tool — AnthropicのAIアシスタント — そのトーンと推論能力から開発者やライターに支持されています。.

Out of the box, Claude is built to hold extended conversations with you, reason through multi-step problems, and vision.

Who should use Claude?

Claude earns a place on a shortlist for three workflows: teams that need to hold extended conversations with you, solo operators who reason through multi-step problems, and builders who want to vision.

Frequently asked questions about Claude

How much does Claude cost?
Claude has a free tier with paid plans starting at $20/mo. The free tier is usually enough to evaluate whether it fits your workflow before paying.
What's the best alternative to Claude?
In the writing & chat category, our top editorial pick is ChatGPT — OpenAI's flagship chat assistant — the broadest, most-used AI product on earth.. It's the most direct alternative our editors have used hands-on. See the alternatives section for more options sorted by category fit.
What can I use Claude for?
Claude is built primarily to hold extended conversations with you. It also supports reasoning, vision, artifacts — see the capabilities section above for the full list.

Alternatives in Writing & chat

Claude review 2026: pricing, features & alternatives · AI Agent Rank