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Anthropic: Claude Opus 4.5

Anthropic
Vision Tools Streaming
200K
Context
$15.00
Input /1M
$75.00
Output /1M
N/A
Max Output
Run API Call Open in Chat

Anthropic: Claude Opus 4.5

Model Overview

Property Value
Model ID anthropic/claude-opus-4-5-20251101
Provider Anthropic
Category Chat
Released November 24, 2025
Status Active
Flagship Yes

Description

Claude Opus 4.5 is a conversational AI model designed for multi-turn dialogue and interactive tasks. Developed by Anthropic, this flagship model represents the latest capabilities and state-of-the-art performance.

Specifications

Property Value
Context Window 200000 tokens
Max Output Tokens 64000 tokens
Knowledge Cutoff March 2025
Modalities Text, Vision
Speed Tier Medium
Quality Tier Flagship

Pricing

Type Price
Input $15.00 per 1M tokens
Output $75.00 per 1M tokens

Capabilities

Capability Supported
Vision/Image Input Yes
Tool/Function Calling Yes
JSON Mode Yes
Streaming Yes
System Prompt Yes

Use Cases

  • Conversational AI and chatbots
  • Customer support automation
  • Interactive content generation
  • Real-time dialogue systems
  • Multi-turn reasoning and problem-solving

Strengths

  • Highest quality and most capable model in its class
  • Balanced performance for most use cases
  • Massive context window for extended document processing
  • Vision capabilities for image understanding and analysis
  • Function calling for structured tool integration
  • JSON mode for reliable structured output

Limitations

  • Requires appropriate use cases matching model specialization
  • Performance depends on prompt quality and task complexity

Integration with LangMart

Gateway Support:

  • Type 1 (Full Platform): Yes
  • Type 2 (Cloud Gateway): Yes
  • Type 3 (Self-hosted): Yes

API Endpoint:

curl -X POST https://api.langmart.ai/v1/chat/completions \
  -H "Authorization: Bearer sk-your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-opus-4-5-20251101",
    "messages": [{"role": "user", "content": "Hello"}],
    "max_tokens": 1024
  }'

OpenAI Compatibility: Full compatibility with OpenAI API format.

Models in this category and from this provider are available in the LangMart marketplace.

Additional Resources

Data Source: LangMart Provider Models Database Last Updated: 2026-01-15