This model was retired on 2027-02-10. The pricing below is the last-known rate, kept for migration reference.

Claude Sonnet 4.6Deprecated

AnthropicReleasedFeb 17, 2026KnowledgeAug 2025
VisionTool useReasoningPrompt cachingStructured output
Context
1M
Max output
128K
Serving providers
8
Cheapest input
$3.00 /1M
Prices are on-demand list rates. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.

Benchmarks

independent evaluations · source: ARC Prize and Artificial Analysis
Speed & latency
Output speed
44 t/s
tokens / second
Time to first token
1.93s
latency
Headline indices
Intelligence Index
48.4
of 100
Coding Index
63.0
of 100
Agentic Index
42.1
of 100
Individual benchmarks · click a row for effort variants
BenchmarkBest scoreEffortCost / task
Aa Analyst Agent0.2reasoning: adaptive
APEX Agents28%reasoning: adaptive
ARC-AGI-260%high$2.70
Automation Bench0.2reasoning: adaptive
CritPt3%reasoning: adaptive
GDPval1374.3reasoning: adaptive
GPQA Diamond87%reasoning: adaptive
Harvey Lab0.9reasoning: adaptive
Humanity's Last Exam34%reasoning: adaptive
IFBench57%reasoning: adaptive
IT-Bench SRE40%reasoning: adaptive
Long-Context Reasoning74%reasoning: adaptive
Mlcr Overall0.2reasoning: adaptive
MMMU-Pro73%reasoning: adaptive
Omniscience12.2reasoning: adaptive
Omniscience Accuracy0.4reasoning: adaptive
Omniscience Non Hallucination0.5reasoning: adaptive
SciCode47%default
TerminalBench Hard53%reasoning: adaptive
TerminalBench v2.171%reasoning: adaptive
τ-bench Banking34%reasoning: adaptive
τ²-bench80%default

Pricing by serving provider

last-known · per 1M tokens · click a provider to expand
Serving providerInput /1MOutput /1MEndpoints
Databricks$3.00$15.001
Anthropic$3.00$15.001
Amazon Bedrock$3.00$15.001
Azure$3.00$15.001
Vertex AI$3.00$15.001
DeepInfra$3.00$15.001
Snowflake$3.00$15.001
OpenRouter$3.00$15.001

Price history

input + output $/1M since we started tracking
Input Output
$0.000$5.00$10.00$15.00Feb 17Jun 4Jul 19Aug 28$15.00$3.00

Cost calculator

estimate your monthly spend on this model
$1,800
estimated / month

Model IDs

copy the exact identifier for your platform
databricks/databricks-claude-sonnet-4-6claude-sonnet-4-6anthropic.claude-sonnet-4-6azure_ai/claude-sonnet-4-6vertex_ai/claude-sonnet-4-6deepinfra/anthropic/claude-sonnet-4-6snowflake/claude-sonnet-4-6anthropic/claude-sonnet-4.6

Frequently asked questions

Claude Sonnet 4.6 pricing, context and availability

Is Claude Sonnet 4.6 still available?

Claude Sonnet 4.6 was retired on 2027-02-10. The pricing on this page is the last-known rate, kept for migration reference.

How much did Claude Sonnet 4.6 cost?

Claude Sonnet 4.6's last-known pricing, before it was retired on 2027-02-10, was $3.00 per 1M input tokens and $15.00 per 1M output tokens.

What was the context window of Claude Sonnet 4.6?

Claude Sonnet 4.6 had a 1M token context window and could return up to 128K output tokens.

What could Claude Sonnet 4.6 do?

Claude Sonnet 4.6 supported image input (vision), tool use, reasoning, prompt caching and structured output.

Other Anthropic models

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Pricing verified against LiteLLM + OpenRouter + provider pages · refreshed daily

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