Claude Sonnet 5

Name: Claude Sonnet 5
Author: Anthropic

Released

2026-06-30

Last refreshed

2026-07-26

Status

Researched 91d ago

ProprietaryCommercial use: conditionalMultimodalCodingRAGAgentsLong contextVisionJSON / Tool useHighlight

Anthropic releases · 17 in the last 12 months · this family litChangelog →

Specifications

Family: Claude 5
Released: 2026-06-30
Context: 1m
Max output: 128,000
Architecture: Decoder Only
Knowledge cutoff: 2026-01
Specialization: general
Openness: Proprietary
License: ProprietaryCommercial use: conditional
Weights: Not released
Code: Unknown
Training: Fine-tuned

Created by

Anthropic

Developing safe and ethical AI systems.

San Francisco, California, United States

Founded 2021

Website

Pricing

Output / 1M

$10.00

Input / 1M

$2.00

Cheapest of 5 routes · Anthropic · cache read $0.200

Providers(5)

Anthropic AWS Bedrock GCP Vertex AI OpenRouter Microsoft Foundry

View 5 provider routes

Links

Website

About

Claude Sonnet 5 is Anthropic's next-generation Sonnet model for agentic coding, tool use, computer use, and professional work. It is a proprietary decoder-only model with a 1M-token context window, 128K max output, multimodal vision, adaptive thinking, function calling, structured outputs, prompt caching, and Batch API support. It is available through the Claude API, AWS Bedrock, Google Cloud Vertex AI, Microsoft Foundry preview, and OpenRouter. Anthropic lists durable standard pricing at $3/1M input and $15/1M output tokens, with introductory $2/$10 pricing through 2026-08-31.

Provider price ladder

Compare all 5

Compare API pricing across 4 providers for input and output tokens, batch, and cached reads when available.

Provider	Input / 1M	Output / 1M	Batch in / out	Cache	Route
Anthropic	$2.00	$10.00	$1.00 / $5.00	read $0.200 / 5m $2.50 / 1h $4.00	Serverless
GCP Vertex AI	$2.00	$10.00	$1.00 / $5.00	read $0.200 / 5m $2.50 / 1h $4.00	Serverless
OpenRouter	$2.00	$10.00	-	read $0.200 / 5m $2.50 / 1h $4.00	Serverless
AWS Bedrock	-	-	-	-	ServerlessPartial

Available via routers & gateways(16)

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 OSSAnthropicGCP Vertex AIMicrosoft Foundry

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.

PassthroughAnthropicGCP Vertex AI

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.

SubscriptionAnthropicGCP Vertex AIMicrosoft Foundry

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 + feeAnthropicGCP Vertex AI

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

Azure AI Foundry Model Router

Router

Microsoft Azure AI Foundry's native model router that uses a trained ML model to route each prompt in real time to the optimal Azure-hosted model, with Balanced/Cost/Quality mode selection and automatic failover.

PassthroughMicrosoft Foundry

Capabilities

VisionMultimodalReasoningJSON / Tool useStructured OutputsCode ExecutionPrompt CachingBatch API

Benchmark peer barsfor Coding

SWE-bench ProRank 8 of 46

80.3

79.2

69.2

67.7

Claude Sonnet 5current

63.2

SWE-bench VerifiedRank 6 of 81

Claude Fable 5

96.0

Claude Opus 5

96.0

Claude Mythos Preview

93.9

Claude Opus 4.8

88.6

Claude Sonnet 5current

85.2

Benchmark scores(21)

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.

Benchmark	Score	Version	Evaluation	Source
SWE-bench Verified	85.2	SWE-bench Verified; Anthropic standard configuration, adaptive thinking at max effort, default sampling, average over 5 trialsObserved 2026-06-30	—	Source
SWE-bench Pro	63.2	SWE-bench Pro; Anthropic standard configuration, adaptive thinking at max effort, default sampling, average over 5 trialsObserved 2026-06-30	—	Source
SWE-bench Multilingual	78.3	SWE-bench Multilingual; Anthropic standard configuration, adaptive thinking at max effort, default sampling, average over 5 trialsObserved 2026-06-30	—	Source
Terminal-Bench 2.1	80.4	Terminal-Bench 2.1; mini-SWE-agent harness on GKE, 1x timeout rate, 3x memory ceiling, xhigh effort, 445 trialsObserved 2026-06-30	—	Source
Humanity's Last Exam — With Tools	57.4	Humanity's Last Exam with web search, web fetch, programmatic tool calling, and code execution; Claude Opus 4.6 grader; 1M total-token capObserved 2026-06-30	—	Source
BrowseComp — Multi-Agent	86.6	BrowseComp multi-agent; web search, web fetch, programmatic tool calling, code execution; 10M-token limit with context compactionObserved 2026-06-30	—	Source
BrowseComp	84.7	BrowseComp single-agent; adaptive thinking at maximum effort, 10M-token limit with context compaction triggered at 200kObserved 2026-06-30	—	Source
OSWorld-Verified	81.2	OSWorld-Verified; 361 tasks, 1080p Ubuntu VM, 100 action steps, adaptive thinking at max effort, pass@1 averaged over 5 runsObserved 2026-06-30	—	Source
GDP.pdf	81.6	GDP.pdf with Python tools and image cropping tool; internal harness, Opus 4.7 judge, mean criteria pass rate averaged over 5 runsObserved 2026-06-30	—	Source
Humanity's Last Exam	43.2	Humanity's Last Exam; no tools; reasoning-only; thinking auto; 1M total-token cap; Claude Opus 4.6 graderObserved 2026-06-30	—	Source
CursorBench	61.2	CursorBench 3.1Observed 2026-06-30	Configuration: Sonnet 5 Max Harness: CursorBench 3.1 Evaluator: Cursor Confidence: confirmed Notes: Highest CursorBench 3.1 score across Cursor's published effort configurations for this base model.	Source
CursorBench	61.5	CursorBench 3.2Observed 2026-07-18	Configuration: Sonnet 5 Max Harness: CursorBench 3.2 productized Cursor-agent workflow Evaluator: Cursor Confidence: confirmed Cost/task: $6.45 Tokens/task: 92,882 Steps/task: 86 Notes: Cursor vendor-reported result; not independently reproducible. Results are subject to variance, and small score differences may not be statistically meaningful.	Source
CursorBench	58.7	CursorBench 3.2Observed 2026-07-18	Configuration: Sonnet 5 Extra High Harness: CursorBench 3.2 productized Cursor-agent workflow Evaluator: Cursor Confidence: confirmed Cost/task: $4.16 Tokens/task: 52,871 Steps/task: 67 Notes: Cursor vendor-reported result; not independently reproducible. Results are subject to variance, and small score differences may not be statistically meaningful.	Source
CursorBench	56.9	CursorBench 3.2Observed 2026-07-18	Configuration: Sonnet 5 High Harness: CursorBench 3.2 productized Cursor-agent workflow Evaluator: Cursor Confidence: confirmed Cost/task: $3.19 Tokens/task: 39,483 Steps/task: 57 Notes: Cursor vendor-reported result; not independently reproducible. Results are subject to variance, and small score differences may not be statistically meaningful.	Source
CursorBench	52.4	CursorBench 3.2Observed 2026-07-18	Configuration: Sonnet 5 Medium Harness: CursorBench 3.2 productized Cursor-agent workflow Evaluator: Cursor Confidence: confirmed Cost/task: $2.16 Tokens/task: 26,200 Steps/task: 46 Notes: Cursor vendor-reported result; not independently reproducible. Results are subject to variance, and small score differences may not be statistically meaningful.	Source
CursorBench	47.7	CursorBench 3.2Observed 2026-07-18	Configuration: Sonnet 5 Low Harness: CursorBench 3.2 productized Cursor-agent workflow Evaluator: Cursor Confidence: confirmed Cost/task: $1.30 Tokens/task: 16,269 Steps/task: 33 Notes: Cursor vendor-reported result; not independently reproducible. Results are subject to variance, and small score differences may not be statistically meaningful.	Source
CursorBench	34.1	CursorBench 4.0Observed 2026-09-10	Configuration: Sonnet 5 Max Harness: CursorBench 4.0 productized Cursor-agent workflow Evaluator: Cursor Confidence: confirmed Cost/task: $7.17 Tokens/task: 149,257 Steps/task: 140 Notes: Cursor vendor-reported configuration result; not independently reproducible. Results are subject to variance, and small score differences may not be statistically meaningful.	Source
CursorBench	32.0	CursorBench 4.0Observed 2026-09-10	Configuration: Sonnet 5 Extra High Harness: CursorBench 4.0 productized Cursor-agent workflow Evaluator: Cursor Confidence: confirmed Cost/task: $4.55 Tokens/task: 83,373 Steps/task: 102 Notes: Cursor vendor-reported configuration result; not independently reproducible. Results are subject to variance, and small score differences may not be statistically meaningful.	Source
CursorBench	30.8	CursorBench 4.0Observed 2026-09-10	Configuration: Sonnet 5 High Harness: CursorBench 4.0 productized Cursor-agent workflow Evaluator: Cursor Confidence: confirmed Cost/task: $3.48 Tokens/task: 61,146 Steps/task: 85 Notes: Cursor vendor-reported configuration result; not independently reproducible. Results are subject to variance, and small score differences may not be statistically meaningful.	Source
CursorBench	28.0	CursorBench 4.0Observed 2026-09-10	Configuration: Sonnet 5 Medium Harness: CursorBench 4.0 productized Cursor-agent workflow Evaluator: Cursor Confidence: confirmed Cost/task: $2.31 Tokens/task: 39,114 Steps/task: 65 Notes: Cursor vendor-reported configuration result; not independently reproducible. Results are subject to variance, and small score differences may not be statistically meaningful.	Source
CursorBench	24.1	CursorBench 4.0Observed 2026-09-10	Configuration: Sonnet 5 Low Harness: CursorBench 4.0 productized Cursor-agent workflow Evaluator: Cursor Confidence: confirmed Cost/task: $1.39 Tokens/task: 23,772 Steps/task: 46 Notes: Cursor vendor-reported configuration result; not independently reproducible. Results are subject to variance, and small score differences may not be statistically meaningful.	Source