Claude Sonnet 4.6

by Anthropic

Anthropic's balanced workhorse — strong reasoning at a fraction of Opus pricing.

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Sonnet 4.6 trades a small amount of headroom on the hardest reasoning tasks for substantially lower cost and faster throughput. Production-grade tool use, structured outputs, vision, and 200K context. The default pick when Opus would be over-spec. Available across direct Anthropic, AWS Bedrock, Vertex AI, and Azure routes through the Opper gateway.

Key info

Input
Output
Features
Context window
1M
Max output
64K
Input price
$3.00 /1M
Output price
$15.00 /1M
  • EU residency available
  • US residency available
  • Zero data retention on PAYG
  • No training by default
  • GDPR DPA available

Benchmarks

Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.

Global rank#51 of 518 LLMs
TierStrong
Output speed60 tok/s
First token1.14s
Intelligence Index44.4
Coding Index46.4
GPQA Diamond
80%
Humanity's Last Exam
13%
SciCode
47%
IFBench
41%
Long-context reasoning
58%
Terminal-Bench Hard
46%
τ²-Bench Telecom
80%

Available routes

Claude Sonnet 4.6 runs on 5 different routes through the Opper gateway. Compare residency, ZDR, and training posture at a glance — full data-handling detail per route below.

ProviderRegionZero data retentionTrainingInputOutput
AnthropicUSEnterpriseNo$3.00$15.00
AWS BedrockEUPAYGNo$3.30$16.50
AzureEUEnterpriseNo$3.00$15.00
Google CloudUSEnterpriseNo$3.00$15.00
Google CloudEUEnterpriseNo$3.30$16.50

Training posture across routes: No training on prompts by default.

Data handling per route

Each route hosting Claude Sonnet 4.6 has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Anthropic United States🇺🇸

Zero data retention is available via Opper Enterprise contract. No training on customer data. US; SCCs; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring
Third-party access
Provider may share with subprocessors / partners
GDPR DPA
DPA available
Transfer mechanism
SCCs

AWS Bedrock Sweden🇸🇪

Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. EU; DPA available.

Zero data retention
On by default on Pay-as-you-go.
Training
No training on customer data.
Logging
None
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
Not applicable — data stays in EU

Azure Sweden🇸🇪

Zero data retention is available via Opper Enterprise contract. No training on customer data. EU; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring (30-day retention)
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
Not applicable — data stays in EU

Google Cloud United States🇺🇸

Zero data retention is available via Opper Enterprise contract. No training on customer data. US; SCCs; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
SCCs

Google Cloud European Union🇪🇺

Zero data retention is available via Opper Enterprise contract. No training on customer data. EU; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
Not applicable — data stays in EU

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Side-by-side on privacy, EU hosting, pricing, and benchmarks.

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Claude Sonnet 4.6 by Anthropic — pricing, benchmarks, ZDR, EU/US hosting | Opper AI