Claude Sonnet 4.6

proprietary

The best combination of speed and intelligence

Intelligence
Reasoning
Speed
Context
1M
Max output
128K
Input price
$3/1M tokens
Output price
$15/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Model IDclaude-sonnet-4-6
Provider OpenCode Zen
Creator Anthropic
Familyclaude-sonnet
Licenseproprietary
Statusactive
Typechat
Input modalitiestext
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window1M tokens
Max input—
Max output128K tokens
Reasoning tokens—
Knowledge cutoff
Training data cutoff
Release date
Sourceofficial

Pricing

Input
$3
Output
$15
Cache write
$3.75
Cache read
$0.3
Batch in
—
Batch out
—

Family Comparison: claude-sonnet

ModelContextMax outPricing
Claude Sonnet 4———
Claude Sonnet 5.51M128K$2$10
Claude Sonnet 51M128K$2$10
Claude Sonnet 4.5200K64K$3$15
Claude Sonnet 4.61M128K$3$15

API

GET/v1/models/opencode/claude-sonnet-4-6

Claude Sonnet 4.6

claude-sonnet-4-6

The best combination of speed and intelligence

Changes · 4 entries
claude-sonnet-4-6updateb301ebeMar 23, 2026, 11:47 PM
modalitiesinput["text"]output["text"]
claude-sonnet-4-6update2b100acMar 23, 2026, 05:30 AM
pricingoutput$15cached input$0.3cache write$3.75
claude-sonnet-4-6update7a4f1f6Mar 22, 2026, 05:43 AM
model_typechat
claude-sonnet-4-6create7f5c66fMar 21, 2026, 05:16 AM