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Software · head to head

Anthropic API vs Assistant.to

Anthropic API logo

Anthropic API

Software

Claude API for developers

From
$3/per-million-tokens
Rated
-
Assistant.to logo

Assistant.to

Software

The easiest way to schedule meetings

From
Free
Rated
-

The short version

  • Only Assistant.to has a free tier, so it costs nothing to try first.
  • Each has a real cost: Anthropic API aWS Marketplace lists Claude Opus 4.8 (Amazon Bedrock Edition), published by seller Anthropic, at $5.00 per million input tokens and $25.00 per million output tokens for standard usage, or $2.50 and $12.50 per million tokens respectively for batch processing; Assistant.to no longer an independent product. assistant.to redirects to Cirrus Insight, which absorbed it
  • They diverge on capability: Anthropic API covers Multiple models, Assistant.to covers In-email scheduling.

Where they differ

Only the attributes on which Anthropic API and Assistant.to actually diverge.

Attributes where Anthropic API and Assistant.to differ
AttributeAnthropic APIAssistant.to
Starting price$3/per-million-tokensFree
Pricing modelusage-basedfreemium
Free tierNoYes
PlatformsApiChrome-extension
Founded20212014

Identical on both: user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Anthropic API

  • Multiple models
  • 200K context
  • Vision capabilities
  • Function calling
  • REST API
  • SDKs
  • Amazon Bedrock
  • Google Vertex

Only in Assistant.to

  • In-email scheduling
  • One-click booking
  • Google Calendar sync
  • Time zone handling
  • Simple interface
  • Gmail
  • Google Calendar
  • Chrome-extension support

What people use each for

The jobs each tool is most often brought in to do.

Anthropic API

  • ai tools managementnot Assistant.to
  • Workflow automationnot Assistant.to
  • Reportingnot Assistant.to

Assistant.to

  • Schedulingnot Anthropic API
  • Appointment bookingnot Anthropic API
  • Time trackingnot Anthropic API
  • Resource managementnot Anthropic API
  • Team coordinationnot Anthropic API

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Anthropic API

  • AWS Marketplace lists Claude Opus 4.8 (Amazon Bedrock Edition), published by seller Anthropic, at $5.00 per million input tokens and $25.00 per million output tokens for standard usage, or $2.50 and $12.50 per million tokens respectively for batch processing
  • AWS Marketplace's Anthropic listing shows cache write tokens billed separately at $6.25 per million tokens for the standard 5-minute cache, rising to $10.00 per million tokens for a 1-hour cache TTL

Assistant.to

  • No longer an independent product. assistant.to redirects to Cirrus Insight, which absorbed it
  • Its scheduling now sits inside a wider Salesforce-focused sales tool rather than being a standalone add-in

Pricing, plan by plan

Anthropic API

$3/per-million-tokens
  • Claude 3.5 Sonnet$3/per-million-input-tokens
    • Fast responses
    • 200K context
  • Claude 3 Opus$15/per-million-input-tokens
    • Most capable
    • Complex tasks

Assistant.to

Free
  • FreeFree
    • In-email scheduling
    • Basic features
  • Pro$5/month
    • Team features
    • Custom branding
    • Priority support

Which should you pick?

Choose Anthropic API if

  • You need multiple models.
  • You work on Api.
  • You also want 200k context.

Choose Assistant.to if

  • You need in-email scheduling.
  • You want to start without paying.
  • You work on Chrome-extension.
  • You also want one-click booking.

Questions people ask

Is Anthropic API or Assistant.to better?
Neither clearly leads. Anthropic API starts at $3/per-million-tokens and Assistant.to at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Anthropic API or Assistant.to?
Assistant.to has a free tier; the other does not. Paid plans start at $3/per-million-tokens for Anthropic API and Free for Assistant.to.
Does Anthropic API or Assistant.to run on more platforms?
Anthropic API runs on Api. Assistant.to runs on Chrome-extension.
Can I use Assistant.to for free?
Yes. Assistant.to has a free tier, so you can try it without paying. Anthropic API starts at $3/per-million-tokens.
What is Anthropic API best used for?
Anthropic API is most often used for ai tools management, workflow automation, reporting. Of those, ai tools management and workflow automation are not what Assistant.to is typically brought in for.
What can Anthropic API do that Assistant.to cannot?
Anthropic API covers Multiple models, 200K context, Vision capabilities, Function calling. Assistant.to covers In-email scheduling, One-click booking, Google Calendar sync, Time zone handling.

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