Anthropic API
Claude API for developers
As of 13 November 2026, Anthropic API's pricing is not published; the vendor quotes on request. Developer API to access Claude models for building AI applications. Softwr lists it under AI. Anthropic API is made by Anthropic, launched in 2021, available on API.
Overview
What Anthropic API does
Developer API to access Claude models for building AI applications. Anthropic API offers various Claude models with different capabilities and pricing tiers for enterprise and startup use.
What people use it for
- AI agent development
- LLM-powered API integration
- Batch processing for cost optimization
The honest half
Where it falls short
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Anthropic API.
- Pricing varies significantly by model tier
- Batch processing and Fast Mode add additional surcharges
- US-only inference costs 1.1x standard pricing
Pricing
What Anthropic API costs
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Fable 5
On request
- Input: $10/MTok
- Output: $50/MTok
- Prompt caching Write: $12.50/MTok
- Prompt caching Read: $1.00/MTok
Opus 5
On request
- Input: $5/MTok
- Output: $25/MTok
- Prompt caching Write: $6.25/MTok
- Prompt caching Read: $0.50/MTok
- Fast Mode: 2x pricing for up to 2.5x faster
Sonnet 5
On request
- Input: $2/MTok
- Output: $10/MTok
- Prompt caching Write: $2.50/MTok
- Prompt caching Read: $0.20/MTok
Haiku 4.5
On request
- Input: $1/MTok
- Output: $5/MTok
- Prompt caching Write: $1.25/MTok
- Prompt caching Read: $0.10/MTok
Capabilities
Features
Multiple models
200K context
Vision capabilities
Function calling
REST API
Integration with REST API
SDKs
Integration with SDKs
Amazon Bedrock
Integration with Amazon Bedrock
Google Vertex
Integration with Google Vertex
Api support
Available on api
Answered, with sources
Questions people ask
Each answer names the page it came from, so you can check it rather than take our word for it.
How much does the Claude API cost?
Claude API uses pay-as-you-go pricing per million tokens (MTok). Haiku 4.5 costs $1 input/$5 output per MTok; Sonnet 5 costs $2 input/$10 output; Opus 5 costs $5 input/$25 output; Fable 5 costs $10 input/$50 output per MTok.
SourceWhat discounts does the Claude API offer?
Batch processing saves 50% on API costs. Prompt caching reduces token costs by up to 90% for cached reads (charged at 80% discount compared to standard rates). Fast Mode for Opus 5 costs 2x standard pricing for up to 2.5x faster response speeds.
SourceDoes the Claude API have different billing models?
Self-serve access uses usage-based tiers with automatic rate limit increases as volume grows. Enterprise customers receive custom rate limits, monthly invoice billing, and hands-on support at negotiated pricing.
SourceHow much extra does US-only inference cost on the Claude API?
US-only inference costs 1.1x pricing for input and output tokens across all model tiers compared to standard multi-region pricing.
SourceBehind it
Who makes Anthropic API
- Company
- Anthropic
- Based in
- San Francisco, California
Keep looking
Where to go from Anthropic API
- Anthropic API alternativesEvery product people weigh against it
- Anthropic API pricingPlans, floors and what the tiers exclude
- Anthropic API badgesWhich rules it meets, and the figure behind each
- All AI softwareThe full category
- Best AI softwareThe shortlist, and how it was cut
Best AI software for
Compare Anthropic API with
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- DeepSeek
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- Replicate
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- Poe
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- Black Forest Labs
- Perplexity
- Vellum
- Cartesia
- Helicone
- HeyGen
- Ideogram
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Softwr does not host reviews and shows no star rating for Anthropic API, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
More on Anthropic API
Anthropic API alternatives
What people switch to, and what they give up
Anthropic API pricing
Every tier, and where the cost actually lands
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Put it head to head with anything we hold
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