Claude Opus 4.5

Name: Claude Opus 4.5
Author: OpenCode Zen

proprietary

Intelligence

Reasoning

Speed

Context

200K

Max output

64K

Input price

$5/1M tokens

Output price

$25/1M tokens

Capabilities

Show unsupported (2)

Reasoning & Interaction

Reasoning

Tool Calling

Output Control

Structured Output

JSON Mode

Infrastructure

Streaming

Batch Processing

Details

Model IDclaude-opus-4-5

ProviderOpenCode Zen

CreatorAnthropic

Familyclaude-opus

Licenseproprietary

Statusactive

Typechat

Input modalitiestext

Output modalitiestext

Open weightNo

Parameters—

Architecture—

Context window200K tokens

Max input—

Max output64K tokens

Reasoning tokens—

Knowledge cutoff2025-05

Training data cutoff2025-08

Release date2025-11-24

Sourceofficial

Pricing

Input

Output

$25

Cache write

$6.25

Cache read

$0.5

Batch in

—

Batch out

—

Family Comparison: claude-opus

Model	Caps	Perf	Speed	Context	Max out	Pricing
claude-opus-5-5-backup	S	—	—	—	—	—
Claude Opus 5.5	RTJJMSB	—	—	1M	128K	$4$20
Claude Opus 4.5	RTJJMSB	—	—	200K	64K	$5$25
Claude Opus 4.6	RTJJMSB	—	—	1M	128K	$5$25
Claude Opus 4.7	RTJJMSB	—	—	1M	128K	$5$25
Claude Opus 4.8	RTJJMSB	—	—	1M	128K	$5$25
Claude Opus 5	RTJJMSB	—	—	1M	128K	$5$25
Claude Opus 4.1	RTJJMSB	—	—	200K	32K	$15$75

API

GET/v1/models/opencode/claude-opus-4-5

Claude Opus 4.5

claude-opus-4-5

Changes · 4 entries

claude-opus-4-5updateb301ebeMar 23, 2026, 11:47 PM

modalitiesinput["text"]output["text"]

claude-opus-4-5update2b100acMar 23, 2026, 05:30 AM

pricingoutput$25cached input$0.5cache write$6.25

claude-opus-4-5update7a4f1f6Mar 22, 2026, 05:43 AM

model_typechat

claude-opus-4-5create7f5c66fMar 21, 2026, 05:16 AM