Claude 3.5 Sonnet
Claude 3.5 Sonnet is worth evaluating for coding, rag, and agents when its provider route and context window match the workload.
Use it for
- Teams evaluating coding, rag, and agents
- Workloads that can use a 200k context window
- Buyers comparing 4 tracked provider routes
Do not use it for
- Workloads where another current model has stronger sourced task evidence
- Family
- Claude 3.5
- Released
- 2024-06-20
- Context
- 200k
- Parameters
- 70B
- Architecture
- Decoder Only
- Knowledge cutoff
- 2024-04
- Specialization
- general
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Weights
- Not released
- Code
- Unknown
- Training
- Fine-tuned
Cheapest of 6 routes · Anthropic · cache read $0.300
About
Claude 3.5 Sonnet, the latest in Anthropic's line of large language models, merges state-of-the-art reasoning, coding, and natural language understanding capabilities with advanced multi-modal processing. Released in October 2024, it excels in benchmarks against previous models and competitors, thanks to its scalable attention mechanisms and massive neural network architecture. Its dynamic routing enables specialization in various tasks, supporting applications from software development and data analysis to customer support and content creation. Users benefit from its "Artifacts" feature for real-time collaborative workflows and can access the model through platforms like Claude.ai and APIs at competitive pricing rates.
Claude 3.5 Sonnet is a proprietary model in the Claude 3.5 family. The structured metadata tracks a 200k-token context window, multimodal input, reasoning, function calling, structured outputs, and code execution. This page tracks provider routes through GCP Vertex AI, AWS Bedrock, Anthropic, and 3 more, with the cheapest tracked route listed at $3 input and $15 output per 1M tokens. Headline tracked benchmarks include HellaSwag 96.2, HumanEval 92.0, and Massive Multitask Language Understanding 88.7.
Top use-case fit: coding, agents, and build tasks
Coding
Q/$ D5 relevant benchmarks in the decision map.
RAG
Included by capability and metadata signals in the decision map.
Agents
Q/$ D1 relevant benchmark in the decision map.
Provider price ladder
Compare all 6Compare API pricing across 4 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Cache | Route |
|---|---|---|---|---|
| Anthropic | $3.00 | $15.00 | read $0.300 / 5m $3.75 / 1h $6.00 | Serverless |
| AWS Bedrock | $3.00 | $15.00 | - | Serverless |
| GCP Vertex AI | $3.00 | $15.00 | - | Serverless |
| Replicate API | $3.00 | $15.00 | - | Serverless |
Available via routers & gateways(16)
LiteLLM
GatewayOpen-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.
OpenRouter
HybridUnified 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.
Portkey
GatewayProduction 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.
AIRouter
RouterCommercial 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.
Amazon Bedrock Intelligent Prompt Routing
RouterAWS 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.
Azure AI Foundry Model Router
RouterMicrosoft 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.
Capabilities
Benchmark peer barsfor Coding
Benchmark scores(12)
| Benchmark | Score | Version | Evaluation | Source |
|---|---|---|---|---|
| HellaSwag | 96.2 | 10-shotObserved 2026-03-06 | — | Source |
| HumanEval | 92.0 | pass@1Observed 2026-03-06 | — | Source |
| Massive Multitask Language Understanding | 88.7 | 5-shotObserved 2026-03-06 | — | Source |
| SWE-bench Verified | 49.0 | 2024-10Observed 2026-04-09 | — | Source |
| LiveCodeBench | 48.7 | 2026-04Observed 2026-04-14 | — | Source |
| Aider Polyglot | 51.6 | 2026-04Observed 2026-04-14 | — | Source |
| BigCodeBench | 44.6 | 2025-01 (Instruct Pass@1)Observed 2026-04-14 | — | Source |
| Chatbot Arena | 1340.0 | —Observed 2026-04-15 | — | Source |
| Massive Multi-discipline Multimodal Understanding | 68.3 | —Observed 2026-04-15 | — | Source |
| MMLU PRO | 77.2 | —Observed 2026-04-14 | — | Source |
| MMMU Pro | 63.7 | standard 4-option (original paper harness)Observed 2024-09-04 | — | Source |
| Mostly Basic Programming Problems+ | 78.8 | —Observed 2026-05-28 | — | Source |
Migration checks
No linked migration route is available for this model yet.
Compare Claude 3.5 Sonnet with other models
- Claude 3.5 Sonnet vs Claude Sonnet 4.6255
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- Claude 3.5 Sonnet vs Claude 3.7 Sonnet54
- Claude 3.5 Sonnet vs Gemini 2.5 Pro26
- Claude 3.5 Sonnet vs Command R+20
- Claude 3.5 Sonnet vs GPT-4o (08-06)20
- Claude 3.5 Sonnet vs Llama 3.3 70B19
Comparison and alternatives
Browse all comparisons →Show all 3 popular comparisonssorted by 7-day search impressions
Frequently asked questions
What is the context window of Claude 3.5 Sonnet?
Claude 3.5 Sonnet has a context window of 200k tokens.
How much does Claude 3.5 Sonnet cost?
Claude 3.5 Sonnet is available at $3/1M input tokens through GCP Vertex AI.
When was Claude 3.5 Sonnet released?
Claude 3.5 Sonnet was released on 2024-06-20.
Which providers offer Claude 3.5 Sonnet?
Claude 3.5 Sonnet is available from 6 providers: GCP Vertex AI, AWS Bedrock, Anthropic, OpenRouter, Microsoft Foundry, Replicate API.
What benchmarks has Claude 3.5 Sonnet been tested on?
Claude 3.5 Sonnet has been evaluated on 12 benchmarks, including HellaSwag, HumanEval, Massive Multitask Language Understanding, SWE-bench Verified, LiveCodeBench.
Cheapest of 6 routes · Anthropic · cache read $0.300