Claude 3.5 Haiku latest vs Claude Sonnet 4.6

Claude 3.5 Haiku latest vs Claude Sonnet 4.6: Claude 3.5 Haiku latest is cheaper by 67% on average. Claude 3.5 Haiku latest 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
$761/mo
Input $1.00/M · Output $5.00/M
Azure AI Foundry
$2,283/mo
Input $3.00/M · Output $15.00/M
At this workload, Claude 3.5 Haiku latest is 67% cheaper than Claude Sonnet 4.6 — a savings of $1,522/month ($18,263/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
  model: claude-3-5-haiku-latest
  provider: anthropic
fallback:
  model: claude-sonnet-4-6
  provider: azure-ai-foundry
shadow: { sample_rate: 0.05 }   # mirror 5% of traffic to compare quality live
Claude 3.5 Haiku latest Claude Sonnet 4.6
Input price $1.00/M $3.00/M
Output price $5.00/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
Cheaper option
~67% cheaper than Claude Sonnet 4.6
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 Haiku latest
Claude Sonnet 4.6
1,466
τ-bench (retail)agent
Claude 3.5 Haiku latest
Claude Sonnet 4.6
91.7%
GPQA Diamondreasoning
Claude 3.5 Haiku latest
41.6%
Claude Sonnet 4.6
89.9%
MMLUgeneral
Claude 3.5 Haiku latest
Claude Sonnet 4.6
89.3%
HumanEvalcode
Claude 3.5 Haiku latest
88.1%
Claude Sonnet 4.6
SWE-bench Verifiedagent
Claude 3.5 Haiku latest
Claude Sonnet 4.6
79.6%
MMMU-Promultimodal
Claude 3.5 Haiku latest
Claude Sonnet 4.6
74.5%
MMLU-Proreasoning
Claude 3.5 Haiku latest
65.0%
Claude Sonnet 4.6
ARC-AGI-2reasoning
Claude 3.5 Haiku latest
Claude Sonnet 4.6
58.3%
Humanity's Last Examreasoning
Claude 3.5 Haiku latest
Claude Sonnet 4.6
33.2%