LLM Reference
Anthropic

Claude 3 Opus on Anthropic

Claude 3 · Anthropic

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Last refreshed 2026-05-11. Next refresh: weekly.

Why use Claude 3 Opus on Anthropic?

Anthropic offers Claude 3 Opus with pay-as-you-go pricing at $15.00/1M input tokens. Anthropic is a safety-focused AI research company and creator of the Claude model family, offering API access through the Anthropic Console for text generation, analysis, and coding tasks.

Compare Claude 3 Opus across 4 providers to find the best fit for your use case
Input / 1M
$15.00
Output / 1M
$75.00
Cache
read $1.50 / 5m $18.75 / 1h $30.00
Batch
-50% · in $7.50 / out $37.50

Setup recipe

Python + curl
Install
pip install anthropic
Auth
export ANTHROPIC_API_KEY=...
Call
import anthropic
client = anthropic.Anthropic()  # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
    model="claude-3-opus",
Model ID
claude-3-opus

Request example

import anthropic

client = anthropic.Anthropic()  # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
    model="claude-3-opus",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello"}]
)
print(message.content[0].text)

Gotchas

  • Use the versioned model ID, e.g. "claude-sonnet-4-6" or "claude-opus-4-7-20251101".
  • The examples expect ANTHROPIC_API_KEY; rename it only if your application config maps the new variable.

Compare Claude 3 Opus Across Providers

ProviderInput (per 1M)Output (per 1M)
AWS Bedrock$15.00$75.00
GCP Vertex AI$15.00$75.00
Anthropic$15.00$75.00
Replicate API$7.50$37.50

Pricing

TypePrice (per 1M)
Input tokens$15.00
Output tokens$75.00

Capabilities

VisionMultimodalReasoningStructured OutputsCode Execution

About Claude 3 Opus

Claude 3 Opus, part of the Claude 3 family by Anthropic, is a cutting-edge large language model (LLM) optimized for high-complexity tasks and exceptional performance. Deprecated January 5, 2026. Migrate to Claude 3.5, 3.7, or 4.x series.

FAQ

What does Claude 3 Opus cost on Anthropic?

On Anthropic, Claude 3 Opus costs $15.0 per 1M input tokens and $75.0 per 1M output tokens.

What is the context window for Claude 3 Opus on Anthropic?

Claude 3 Opus supports a 200,000 token context window on Anthropic.

How does Anthropic compare to other Claude 3 Opus providers?

Claude 3 Opus is available from 4 providers. The cheapest input pricing is $7.5/1M tokens from Replicate API.

Who created Claude 3 Opus?

Claude 3 Opus was created by Anthropic as part of the Claude 3 model family.

Is Claude 3 Opus open source?

Claude 3 Opus's open source status is unknown in the seed data.

Get Started

Model Specs

Released2024-03-04
Parameters2T
Context200K
ArchitectureDecoder Only
Knowledge cutoff2023-08

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