Anthropic

Claude Opus 4.5

FrontierProprietaryReasoningProprietary
Input Price
$5.00
/M tokens
Output Price
$25.00
/M tokens
Intelligence
70
/100
Arena Rank
#7
Overall
Coding Rank
#7
Arena
Context
200K
tokens

One9Founders Verdictmoderate

The previous frontier champion, now overshadowed by 4.6 but still incredibly capable. Opus 4.5 scored 80.9% on SWE-bench and delivers top-tier creative writing. At the same price as 4.6, there's little reason to choose it over the newer model unless you have specific version-pinning needs.

Still a beast, but 4.6 has taken its crown. Use for version stability.

Best For

  • creative writing
  • complex research tasks
  • code review and architecture

Not Great For

  • cost-sensitive applications
  • any new project (use 4.6 instead)

Startup Recommendation

Teams with existing 4.5 integrations that aren't ready to migrate.

Pricing Details

Input
$5.00
per 1M tokens
Output
$25.00
per 1M tokens
Cached Input
$0.50
per 1M tokens
Batch Input
$2.50
per 1M tokens

Capabilities

-Function Calling
-Structured Output
Vision
-Web Search
-Code Execution
-MCP
-Audio Input
-Video Input
-Reasoning
-Streaming
-Batch API
-Computer Use

Chatbot Arena Rankings

Overall
#7
Coding
#7
Math
#7
Creative
#5

Security & Compliance

SOC 2 Type II
GDPR
HIPAA
Enterprise SSO
Audit Logs

Training data policy: API data NOT used for training by default

DPDP Act (India): Data processed in US. No India data center. Compliant via DPA.

Data residency: US

India Availability

Available. API accessible from India. Payments via international card. Also on AWS Bedrock (Mumbai).