Warp

Claude Sonnet 4.6

ChatInput: TextInput: ImageInput: FileReleased Feb 17, 2026

Built by Anthropic · United States · anthropic.com

Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with...

How to use

Just add the suffix. Hard questions still come back from this model; only easy ones drop to something cheaper, and nothing pricier than it gets used.

model: "anthropic/claude-sonnet-4-6:auto"

Sets no behavior — whatever your key already stores stays in effect.

Without the suffix, the bare name always goes to this model — no routing, so nothing saved.

Context

1M

Max output

128K

Input $/1M

$3.00

Output $/1M

$15.00

Features

Tool callingJSON

Providers

DeepInfra

Providers

Price, latency, and uptime per provider serving this model. Warp tries them in order of how each host has just been behaving, moving to the next on failure. Click a row for regions and data policies.

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Performance

Benchmark quality scores, and measured speed per provider.

Quality

GPQA DiamondPhD-level science questions
87.4%
AIMECompetition mathematics
85.8%
FrontierMathResearch-level mathematics
32.4%
SWE-bench VerifiedReal GitHub issue resolution
75.2%
Terminal-BenchAgentic terminal tasks
53.4%
SciCodeScientific code generation
46.8%
ARC-AGI-2Abstract reasoning
60.4%
SimpleQA VerifiedFactual accuracy
29.0%

At each model's best reasoning effort

Agent arenaRank on real tool-using sessions (frontier models only)#11+1.99%
Category ranksAmong all rated models
Agent#11Coding#16Korean#17Instruction following#13

Source: LMArena

Speed

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Parameter support

What Warp actually does with each parameter when you call this model. The answer differs by serving provider and by API surface.