Claude 3.5 Sonnet (2024-06-20) vs Claude Sonnet 4.6

Claude 3.5 Sonnet (2024-06-20) vs Claude Sonnet 4.6: Claude 3.5 Sonnet (2024-06-20) is cheaper by 0% on average. Claude 3.5 Sonnet (2024-06-20) 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.

3,000
01,000,000
400
064,000
5,000
01,000,000
Anthropic
$2,283/mo
Input $3.00/M · Output $15.00/M
Azure AI Foundry
$2,283/mo
Input $3.00/M · Output $15.00/M
At this workload, Claude Sonnet 4.6 is 0% cheaper than Claude 3.5 Sonnet (2024-06-20) — a savings of $0.000000/month ($0.000000/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
  model: claude-sonnet-4-6
  provider: azure-ai-foundry
fallback:
  model: claude-3-5-sonnet-20240620
  provider: anthropic
shadow: { sample_rate: 0.05 }   # mirror 5% of traffic to compare quality live
Claude 3.5 Sonnet (2024-06-20) Claude Sonnet 4.6
Input price $3.00/M $3.00/M
Output price $15.00/M $15.00/M
Context window 200,000 1,000,000
Max output 8,192 64,000
Function calling
Vision
Audio input
Reasoning
Prompt caching
Structured output
Pricing verified May 7, 2026 May 12, 2026
Larger context
1,000,000 tokens
More capabilities
5 of 6 capability flags advertised

Benchmark comparison

Side-by-side public benchmark scores. Greener bar = winner.

Chatbot Arena ELOgeneral
Claude 3.5 Sonnet (2024-06-20)
Claude Sonnet 4.6
1,466
τ-bench (retail)agent
Claude 3.5 Sonnet (2024-06-20)
Claude Sonnet 4.6
91.7%
GPQA Diamondreasoning
Claude 3.5 Sonnet (2024-06-20)
Claude Sonnet 4.6
89.9%
MMLUgeneral
Claude 3.5 Sonnet (2024-06-20)
88.7%
Claude Sonnet 4.6
89.3%
SWE-bench Verifiedagent
Claude 3.5 Sonnet (2024-06-20)
Claude Sonnet 4.6
79.6%
MMMU-Promultimodal
Claude 3.5 Sonnet (2024-06-20)
Claude Sonnet 4.6
74.5%
ARC-AGI-2reasoning
Claude 3.5 Sonnet (2024-06-20)
Claude Sonnet 4.6
58.3%
Humanity's Last Examreasoning
Claude 3.5 Sonnet (2024-06-20)
Claude Sonnet 4.6
33.2%