Claude 3.5 Sonnet — Anthropic | Modeldex

Claude 3.5 Sonnet

Active

Mid-2024 release setting a new standard for coding and reasoning at mid-tier price.

Updated 5 days agoStructured data from Modeldex catalog

VisionAgenticLong context

Not enough benchmark coverage yet for an Intelligence Index — needs at least 3 results across 2 categories.

Overview

Claude 3.5 Sonnet was Anthropic's strongest mid-tier model before the Claude 4 series, with strong coding and extended artifacts support. Widely used in production.

History

Claude 3.5 Sonnet was released on 2024-06-20.

Training & availability

Anthropic has not released the underlying model weights — access is via their hosted API only.

Capabilities

Context window: 200K tokens.
Max output: 8K tokens.
Input modalities: text, image.

Recommended for: vision, agentic, long-context.

Pricing

Input: $3.0000 per 1M tokens
Output: $15.0000 per 1M tokens

Use the cost calculator above to estimate monthly spend for your workload.

Quick start

Minimal example using the anthropic API. Copy, paste, replace the key.

from anthropic import Anthropic

client = Anthropic(api_key="sk-ant-...")
resp = client.messages.create(
    model="claude-3-5-sonnet",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Explain quantum computing in one sentence."}],
)
print(resp.content[0].text)

Cost calculator

Estimate your monthly bill. Presets are typical workload sizes.

Input tokens / month5.0M

@ $3/1M

Output tokens / month2.0M

@ $15/1M

Input cost

$15

5.0M × $3/1M

Output cost

$30

2.0M × $15/1M

Total / month

$45

$540 / year

Integrations & tooling support

Tool calling: Supported
Structured outputs: Supported

Price vs quality

Premium pricing

Priced like a frontier model. Quality tier pending more benchmark coverage.

Quality percentile: —
Effective price: $12/1M
Pricing breakdown: $3/1M in
$15/1M out

Community ratings

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