Claude Sonnet 4.5
Claude Sonnet 4.5 is a coding model from Anthropic with strong benchmark scores, including 77.2% on SWE-bench Verified and 61.4% on OSWorld for computer use, sustaining 30+ hour agentic coding sessions, and delivering substantial gains across coding, reasoning, math, and domain-specific expertise.
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index.ts
import { streamText } from 'ai'
const result = streamText({ model: 'anthropic/claude-sonnet-4.5', prompt: 'Why is the sky blue?'})More models by Anthropic
| Model |
|---|
| 1M | 1.7s | 94tps | $10/M | $50/M | Read:$1/M Write: $12.5/M | $10/K + input costs | +2 |    | 07/01/2026 | |||
| 1M | 1.4s | 110tps | $3/M$2/M | $15/M$10/M | Read:$0.3/M$0.2/M Write: $3.75/M$2.5/M | $10/K + input costs | +3 | | 06/29/2026 | |||
| 1M | 0.9s | 104tps | $5/MFast $10/M | $25/MFast $50/M | Read:$0.5/M Write: $6.25/M | $10/K + input costs | +3 | | 05/28/2026 | |||
| 1M | 0.7s | 74tps | $3/M | $15/M | Read:$0.3/M Write: $3.75/M | $10/K + input costs | +3 | | 02/17/2026 | |||
| 1M | 1.3s | 56tps | $5/MFast $30/M | $25/MFast $150/M | Read:$0.5/M Write: $6.25/M | $10/K + input costs | +3 | | 02/05/2026 | |||
| 200K | 0.5s | 133tps | $1/M | $5/M | Read:$0.1/M Write: $1.25/M | $10/K + input costs | +3 | | 10/15/2025 |