Home/Models/Claude Sonnet 4.6
AnthropicAnthropic
Coding1M tokens

Claude Sonnet 4.6

API Model ID:claude-sonnet-4.6

State-of-the-art coding and agent execution model with ultra-precise tool call reliability.

#1M Context#Zero Drift#Coding#SOTA Velocity#Tools
Context Window1M tokens1,000,000 tokens
Max Output64K tokens64,000 tokens
Input Price$3.50per 1M input tokens
Output Price$17.50per 1M output tokens
Latency / Speed~110ms160 tokens/sec

Overview & Architecture

Claude Sonnet 4.6 advances Anthropic's middle tier with expanded 1-million-token context, zero-drift tool calling, and accelerated generation speeds. It is optimized to run long-lived autonomous developer sessions without degradation in accuracy or syntax consistency.

ArchitectureScaled Hybrid Attention Transformer with Zero-Drift Tool Routing
Knowledge IndexCurrent (Continuously Indexed)

Benchmark Highlights

SWE-bench Verified69.1%

Autonomous issue resolution

ToolBench96.2%

Multi-tool call exactness

MMLU-Pro90.5%

Advanced reasoning and engineering math

Supported Capabilities

Function Calling / Tools
Supported
Vision & Image Inputs
Supported
Audio & Voice Inputs
No
Structured JSON Mode
Supported
System Prompts
Supported
Streaming Completions
Supported
Prompt Caching
Supported

Engineering Strengths

  • 1M token context with near-instant caching hits
  • Substantially lowered hallucination rates during complex tool interactions
  • Seamless TypeScript, Python, Rust, and Go code synthesis with full type safety
  • Fast response times maintaining developer flow state

Recommended Production Workloads

  • Full-stack autonomous agents building complete features end-to-end
  • Enterprise software migrations and automated documentation generation
  • Real-time pair programming assistants in modern IDEs

Execute via Gruvo

Unified Endpoint

Connect through Gruvo with OpenAI-compatible client libraries. Gruvo translates requests, manages provider streaming, and applies caching automatically.

import OpenAI from "openai";

// Configure client with Gruvo's unified AI gateway
const gruvo = new OpenAI({
  baseURL: "https://api.gruvo.ai/v1",
  apiKey: process.env.GRUVO_API_KEY,
  defaultHeaders: {
    "X-Gruvo-Provider": "anthropic",
  },
});

const completion = await gruvo.chat.completions.create({
  model: "claude-sonnet-4.6",
  messages: [
    { role: "system", content: "You are a production reasoning assistant." },
    { role: "user", content: "Analyze the architecture of our service." },
  ],
  temperature: 0.2,
});

console.log(completion.choices[0].message.content);

Automatic Failover & Routing

If Anthropic suffers an unexpected outage or rate limit (HTTP 429), Gruvo can automatically route in-flight requests to equivalent tier models:

Gruvo Execution Layer

  • Real-time per-token latency and error observability
  • Unified spend tracking and budget caps
  • Bring your own provider API keys or use pooled keys
Start Free on Gruvo