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AI API/Anthropic

ClaudeAPI pricing & API key

Every Anthropic model on one page: 15 models, from $0.15 to $22.15 per 1M input tokens. Get one Claude API key from YepAPI and pay per request — no subscription, no Anthropic account or waitlist.

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No credit card required. Takes 30 seconds.

Claude API pricing (15 models)

YepAPI prices per 1M tokens (text) or per output (media), cheapest first. Updated October 24, 2026.

Model	Input / 1M	Output / 1M	Context
Claude Haiku 5.5	$0.15	$0.74	1M
Claude Haiku 4.5	$1.48	$7.38	200K
Claude Sonnet 5	$2.95	$14.77	1M
Claude Sonnet 5.5	$2.95	$14.77	1M
Claude Sonnet 4.6	$4.43	$22.15	1M
Claude Sonnet 4.5	$4.43	$22.15	1M
Claude Opus 5.5	$5.91	$29.54	1M
Claude Opus 4.8	$7.38	$36.92	1M
Claude Opus 4.7	$7.38	$36.92	1M
Claude Opus 4.5	$7.38	$36.92	200K
Claude Opus 4.6	$7.38	$36.92	1M
Claude Opus 5	$7.38	$36.92	1M
Claude Fable 5	$14.77	$73.85	1M
Claude Fable 5.1	$14.77	$73.85	1M
Claude Opus 4.1	$22.15	$110.78	200K

All Claude models

Claude Opus 4.8

Text Generation

Access Claude Opus 4.8 through one API key. Anthropic's newest and most intelligent model.

1M ctx$7.38/M in

Claude Fable 5

Text Generation

Access Claude Fable 5 through one API key. Anthropic's creative writing flagship.

1M ctx$14.77/M in

Claude Opus 4.7

Text Generation

Access Claude Opus 4.7 through one API key. Anthropic's newest and most intelligent model.

1M ctx$7.38/M in

Claude Opus 4.5

Text Generation

Access Claude Opus 4.5 through one API key. OpenAI-compatible, pay per token.

200K ctx$7.38/M in

Claude Opus 4.1

Text Generation

Access Claude Opus 4.1 through one API key. OpenAI-compatible, pay per token.

200K ctx$22.15/M in

Claude Opus 4.6

Text Generation

Access Claude Opus 4.6 through one API key. Anthropic's previous-generation flagship.

1M ctx$7.38/M in

Claude Sonnet 4.6

Text Generation

Access Claude Sonnet 4.6 through one API key. Anthropic's latest balanced model with 1M context.

1M ctx$4.43/M in

Claude Fable 5.1

Text Generation

Access Claude Fable 5.1 through one API key. Anthropic Frontier Agentic Coding & Knowledge Work.

1M ctx$14.77/M in

Claude Opus 5.5

Text Generation

Access Claude Opus 5.5 through one API key. Anthropic Flagship for Reasoning & Coding.

1M ctx$5.91/M in

Claude Opus 5

Text Generation

Access Claude Opus 5 through one API key. Anthropic Opus 5 Flagship.

1M ctx$7.38/M in

Claude Sonnet 5

Text Generation

Access Claude Sonnet 5 through one API key. Anthropic Sonnet 5 Frontier Mid-Tier.

1M ctx$2.95/M in

Claude Haiku 4.5

Text Generation

Access Claude Haiku 4.5 through one API key. Anthropic Fastest Claude.

200K ctx$1.48/M in

Claude Sonnet 4.5

Text Generation

Access Claude Sonnet 4.5 through one API key. Previous-gen Anthropic flagship.

1M ctx$4.43/M in

Claude Sonnet 5.5

Text Generation

Access Claude Sonnet 5.5 through one API key. Anthropic Everyday Sonnet-Class Model.

1M ctx$2.95/M in

Claude Haiku 5.5

Text Generation

Access Claude Haiku 5.5 through one API key. Anthropic Fast Low-Cost Claude.

1M ctx$0.15/M in

Start using Anthropic models in 30 seconds

$5 free credit on signup. No credit card required.

Anthropic API through YepAPI

YepAPI provides access to Anthropic models through a unified API endpoint. Instead of managing a separate Anthropic API key and billing account, use your single YepAPI key to call any Anthropic model alongside 252 other AI models from OpenAI, Anthropic, Google, Meta, and more.

All Anthropic models use the same OpenAI-compatible request format. Switch between models by changing the model parameter — no SDK changes, no code rewrites. Pay per token with no monthly minimums.

How to get a Claude API key

Sign up at yepapi.com with Google or email — about 30 seconds, no card.
Open the dashboard and create an API key (it starts with yep_sk_).
Call any Anthropic model with that key — the OpenAI-compatible /v1/ai/chat/completions endpoint for text models.
Top up any amount; usage is billed per request.

Claude API FAQ

How much does the Claude API cost?: Anthropic models cost from $0.15 to $22.15 per 1M input tokens through YepAPI. The cheapest is Claude Haiku 5.5 ($0.15 in / $0.74 out per 1M). You pay per request with no monthly fee.
How do I get a Claude API key?: Sign up at yepapi.com (about 30 seconds), open the dashboard and create an API key. The one key works for all 15 Anthropic models and 252 models from other providers — no separate Anthropic account.
Is there a free Claude API?: New YepAPI accounts in most countries get free signup credit, enough to try Anthropic models without a card. After that you pay per request; there is no subscription.
What is the cheapest Claude model?: Claude Haiku 5.5 — $0.15 in / $0.74 out per 1M.
Which Claude model has the largest context window?: Claude Opus 4.8, with 1M tokens of context.
Can I use the Claude API with the OpenAI SDK?: Yes. Set the base URL to https://api.yepapi.com/v1/ai, use your YepAPI key, and pass the Anthropic model ID (for example "anthropic/claude-opus-4.8").

Ready to use Anthropic models?

15 Anthropic models included with one API key. $5 free credit on signup. No credit card required.

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