Claude 3 Opus (2024-02-29) vs Claude Sonnet 4.6

Name: Claude Sonnet 4.6
Brand: Azure AI Foundry
Price: 3.000000 USD

Claude 3 Opus (2024-02-29) vs Claude Sonnet 4.6: Claude Sonnet 4.6 is cheaper by 80% on average. Claude 3 Opus (2024-02-29) from Anthropic (200,000-token context, tool calls) vs. Claude Sonnet 4.6 from Azure AI Foundry (1,000,000-token context, reasoning, tool calls). Use Agent Command Center to A/B both in shadow mode and pick the winner per workload.

Side-by-side cost

Live workload comparison

Same workload run through both models. The cheaper one is highlighted.

Input tokens / request3,000

01,000,000

Output tokens / request400

064,000

Requests / day5,000

01,000,000

Claude 3 Opus (2024-02-29)

Anthropic

$11,414/mo

Input $15.00/M · Output $75.00/M

Claude Sonnet 4.6Cheaper

Azure AI Foundry

$2,283/mo

Input $3.00/M · Output $15.00/M

At this workload, Claude Sonnet 4.6 is 80% cheaper than Claude 3 Opus (2024-02-29) — a savings of $9,131/month ($109,575/year).

Production recipe — Agent Command Center

strategy: cost-optimized
primary:
  model: claude-sonnet-4-6
  provider: azure-ai-foundry
fallback:
  model: claude-3-opus-20240229
  provider: anthropic
shadow: { sample_rate: 0.05 }   # mirror 5% of traffic to compare quality live

Get started free →Routing docs ↗

	Claude 3 Opus (2024-02-29) Anthropic	Claude Sonnet 4.6 Azure AI Foundry
Input price	$15.00/M	$3.00/M
Output price	$75.00/M	$15.00/M
Context window	200,000	1,000,000
Max output	4,096	64,000
Function calling	✓	✓
Vision	✓	✓
Audio input	—	—
Reasoning	—	✓
Prompt caching	✓	✓
Structured output	✓	✓
Pricing verified	May 12, 2026	May 12, 2026