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Claude Haiku 4.5
proprietary
The fastest model with near-frontier intelligence
Intelligence
Reasoning
Speed
Context
200K
Max output
64K
Input price
$1
/1M tokens
Output price
$5
/1M tokens
Capabilities
Show unsupported (2)
Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing
Details
Model ID
claude-haiku-4-5
Provider
OpenCode Zen
Creator
Anthropic
Family
claude-haiku
License
proprietary
Status
active
Type
chat
Input modalities
text
Output modalities
text
Open weight
No
Parameters
—
Architecture
—
Context window
200K tokens
Max input
—
Max output
64K tokens
Reasoning tokens
—
Knowledge cutoff
2025-02
Training data cutoff
2025-07
Release date
2025-10-15
Source
official
Pricing
Input
$1
Output
$5
Cache write
$1.25
Cache read
$0.1
Batch in
—
Batch out
—
Family Comparison: claude-haiku
Model
Caps
Perf
Speed
Context
Max out
Pricing
Claude Haiku 5.5
R
T
J
JM
S
B
—
—
1M
128K
$0.1
$0.5
Claude Haiku 3.5
T
S
B
—
—
—
—
$0.8
$4
Claude Haiku 4.5
R
T
J
JM
S
B
—
—
200K
64K
$1
$5
API
GET
/v1/models/opencode/claude-haiku-4-5
Try
Claude Haiku 4.5
claude-haiku-4-5
The fastest model with near-frontier intelligence
Changes · 4 entries
claude-haiku-4-5
update
b301ebe
Mar 23, 2026, 11:47 PM
modalities
input
["text"]
output
["text"]
claude-haiku-4-5
update
2b100ac
Mar 23, 2026, 05:30 AM
pricing
output
$5
cached input
$0.1
cache write
$1.25
claude-haiku-4-5
update
7a4f1f6
Mar 22, 2026, 05:43 AM
model_type
chat
claude-haiku-4-5
create
7f5c66f
Mar 21, 2026, 05:16 AM
Human
AI