Claude Sonnet 4

Released
2025-08-01
Last refreshed
2026-07-26
Status
Researched 109d ago
DeprecatedProprietaryCommercial use: conditionalMultimodalRAGLong contextVisionJSON / Tool use

Claude Sonnet 4 is a legacy integration reference; evaluate Claude Sonnet 4.6 before starting new work.

Anthropic releases · 16 in the last 12 monthsChangelog →
Specifications
Family
Claude 4
Released
2025-08-01
Context
200k
Max output
64,000
Openness
Proprietary
License
ProprietaryCommercial use: conditional
Weights
Not released
Code
Unknown
Created by
Anthropic

Developing safe and ethical AI systems.

San Francisco, California, United States
Founded 2021
Website
Pricing

No tracked provider token pricing is available yet.

Providers(4)
AnthropicAWS BedrockOpenRouterVercel AI Gateway
View 4 provider routes

This model is deprecated. Anthropic recommends switching to Claude Sonnet 4.6.

About

Claude Sonnet 4 API snapshot (claude-sonnet-4-20250514) is deprecated and scheduled to retire from Anthropic-operated platforms on June 15, 2026. Use Claude Sonnet 4.6 for current integrations.

Provider price ladder

Compare all 4

No tracked provider token pricing is available for this model yet.

Available via routers & gateways(15)

LiteLLM

Gateway

Open-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.

Free OSSAnthropic

OpenRouter

Hybrid

Unified hybrid gateway to 400+ models from 60+ providers via a single OpenAI-compatible API, with optional auto-routing that selects the best model per prompt.

PassthroughAnthropic

Portkey

Gateway

Production AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.

SubscriptionAnthropic

AIRouter

Router

Commercial LLM router that analyzes incoming requests and routes to the optimal model for cost/quality/latency via a drop-in OpenAI-compatible API, with a privacy-preserving embedding mode that avoids sending prompt content.

Passthrough + feeAnthropic

Amazon Bedrock Intelligent Prompt Routing

Router

AWS Bedrock's native intelligent prompt router that routes prompts between Anthropic Claude model tiers (Haiku/Sonnet) based on predicted task complexity, with no extra per-routing charge.

PassthroughAWS Bedrock

Helicone

Gateway

Observability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache 2.0 open-source core with a managed hosted tier for logging and analytics.

SubscriptionAnthropic

Capabilities

VisionMultimodalStructured Outputs

Benchmark peer barsfor Vision

Massive Multi-discipline Multimodal UnderstandingRank 22 of 46
Qwen3.6-Plus
86.0
ByteDance Doubao Seed 2.0 Pro
85.4
Qwen3.5-397B-A17B
85.0
Gemini 3.5 Flash
83.6
Claude Sonnet 4current
74.4

Benchmark scores(1)

Scores are benchmark-specific and are direction-aware: the same numeric gap can mean very different outcomes across suites. Use the leaderboard context and this model's provider route to decide whether the winning margin is meaningful for your workload.
BenchmarkScoreVersionEvaluationSource
Massive Multi-discipline Multimodal Understanding74.4—Observed 2026-04-15—Source

Migration checks

No linked migration route is available for this model yet.