Claude Opus 4.5

Context
200K
Max output
64K

Capabilities

Reasoning & Interaction
Reasoning
Infrastructure
Streaming

Details

Model IDanthropic.claude-opus-4-5-20251101-v1:0
Provider Amazon Bedrock
Creator Anthropic
Family—
License—
Status—
Typechat
Input modalitiestext
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window200K tokens
Max input—
Max output64K tokens
Reasoning tokensYes
Knowledge cutoff—
Release date
Sourceofficial

API

GET/v1/models/amazon/anthropic.claude-opus-4-5-20251101-v1:0

Claude Opus 4.5

anthropic.claude-opus-4-5-20251101-v1:0
Changes · 4 entries
anthropic.claude-opus-4-5-20251101-v1:0updateca7a400Nov 2, 2026, 03:02 AM
capabilitiesreasoningyes
release_date2025-11-24
context_window200000
max_output_tokens64000
reasoning_tokensyes
page_urlhttps://docs.aws.amazon.com/bedrock/latest/userguide/mode...
anthropic.claude-opus-4-5-20251101-v1:0update80c574aJun 3, 2026, 07:05 AM
release_date2025-11-24
context_window200000
max_output_tokens64000
reasoning_tokensyes
page_urlhttps://docs.aws.amazon.com/bedrock/latest/userguide/mode...
anthropic.claude-opus-4-5-20251101-v1:0update7a4f1f6Mar 22, 2026, 05:43 AM
model_typechat
anthropic.claude-opus-4-5-20251101-v1:0create7f5c66fMar 21, 2026, 05:16 AM