claude-opus-4.5

completions

byanthropic

claude-opus-4.5

completions

Published by: anthropicProvider:

anthropic

Claude Opus 4.5 is Anthropic's most intelligent model to date. It sets a new standard across coding, agents, computer use, and enterprise workflows. Opus 4.5 is a meaningful step forward in what AI systems can do.

Released

Nov 24, 2025

Knowledge

Mar 1, 2025

License

Proprietary

Context

200K

Input

$5 / 1M tokens

Output

$25 / 1M tokens

Cached

$0.5 / 1M tokens

Cached Write

$6.25 / 1M tokens

Accepts: text, image

Returns: text

Released Nov 24, 2025Knowledge Cutoff: Mar 1, 2025License: Proprietary

Context: 200K Input: $5 / 1M tokensOutput: $25 / 1M tokensCached: $0.5 / 1M tokensCached Write: $6.25 / 1M tokensAccepts: text, imageReturns: text

Access claude-opus-4.5 through LangDB AI Gateway

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Integrate with anthropic's claude-opus-4.5 and 250+ other models through a unified API. Monitor usage, control costs, and enhance security.

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Benchmark Results for claude-opus-4.5

Category Performance Scores:

Maths: Score 91.30 (Top 6% - Rank #20)
Finance: Score 80.55 (Top 3% - Rank #10)
Science: Score 81.26 (Top 2% - Rank #7)
Writing: Score 71.20 (Top 6% - Rank #20)
Academia: Score 78.20 (Top 1% - Rank #4)
Marketing: Score 73.28 (Top 4% - Rank #13)
Programming: Score 60.20 (Top 1% - Rank #4)

Overall Performance: 76.5715873015873 average score across all categories

Detailed Benchmark Scores:

Benchmark	Score	Percentile	Domain
HLE	28.40	Top 1%	General Knowledge
GPQA	86.60	Top 2%	STEM (Physics, Chemistry, Biology)
SciCode	49.50	Top 1%	Scientific
MMLU-Pro	89.50	Top 1%	General Knowledge
LiveCodeBench	87.10	Top 2%	Programming
AA Math Index	91.30	Top 6%	Mathematics
AA Coding Index	60.20	Top 1%	Programming
AAII	69.80	Top 1%	General

GPQA Score: 86.60 - Graduate-level reasoning benchmark

Model Comparison:

Provider: anthropic

Model Type: completions

Context Size: 200000 tokens

Comparing against 320 models in the database

Category Scores

maths#8 finance#5 science#5 academia#3 marketing#7 programming#2

Benchmark Tests

View Other Benchmarks

HLE

28.4

General Knowledge

GPQA

86.6

STEM (Physics, Chemistry, Biology)

SciCode

49.5

Scientific

MMLU-Pro

89.5

General Knowledge

LiveCodeBench

87.1

Programming

AA Math Index

91.3

Mathematics

AA Coding Index

60.2

Programming

AAII

69.8

General

Metric	HLE	GPQA	SciCode	MMLU-Pro	LiveCodeBench	AA Math Index	AA Coding Index	AAII
Score	28.4	86.6	49.5	89.5	87.1	91.3	60.2	69.8

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Code Examples

Integration samples and API usage

Code Samples for claude-opus-4.5

Python SDK Example:

from openai import OpenAI

client = OpenAI(
    base_url="https://api.us-east-1.langdb.ai//projects/<your_project_id>",
    api_key="<your_api_key>"
)

response = client.chat.completions.create(
    model="claude-opus-4.5",
    messages=[
        {"role": "user", "content": "Hello, how are you?"}
    ]
)

print(response.choices[0].message.content)

TypeScript SDK Example:

import OpenAI from 'openai';

const client = new OpenAI({
    baseURL: "https://api.us-east-1.langdb.ai//projects/<your_project_id>",
    apiKey: "<your_api_key>"
});

const response = await client.chat.completions.create({
    model: "claude-opus-4.5",
    messages: [
        { role: "user", content: "Hello, how are you?" }
    ]
});

console.log(response.choices[0].message.content);

cURL Example:

curl -X POST "https://api.us-east-1.langdb.ai//projects/<your_project_id>/v1/chat/completions" \
  -H "Authorization: Bearer <your_api_key>" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-opus-4.5",
    "messages": [
        {"role": "user", "content": "Hello, how are you?"}
    ]
  }'

Model: claude-opus-4.5

Provider: anthropic

API Endpoint: $https://api.us-east-1.langdb.ai/

Create API Key

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Benchmark Tests

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claude-opus-4.5 by anthropic - AI Model Details, Pricing, and Performance Metrics

claude-opus-4.5

claude-opus-4.5

Access claude-opus-4.5 through LangDB AI Gateway

Category Scores

Benchmark Tests

Compare with Similar Models

Code Examples

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