Claude Haiku 4.5 vs Claude Sonnet 4.5
Claude Haiku 4.5 vs Claude Sonnet 4.5: Claude Haiku 4.5 is cheaper by 67%. Claude Haiku 4.5 from Azure AI Foundry (200,000-token context) vs. Claude Sonnet 4.5 from Anthropic (200,000-token context). 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
0200,000
400
064,000
5,000
01,000,000
At this workload, Claude Haiku 4.5 is 67% cheaper than Claude Sonnet 4.5 — a savings of $1,522/month ($18,263/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
model: claude-haiku-4-5
provider: azure-ai-foundry
fallback:
model: claude-sonnet-4-5
provider: anthropic
shadow: { sample_rate: 0.05 } # mirror 5% of traffic to compare quality live| Claude Haiku 4.5 | Claude Sonnet 4.5 | |
|---|---|---|
| Input price | $1.00/M | $3.00/M |
| Output price | $5.00/M | $15.00/M |
| Context window | 200,000 | 200,000 |
| Max output | 64,000 | 64,000 |
| Function calling | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio input | — | — |
| Reasoning | ✓ | ✓ |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Pricing verified | May 16, 2026 | May 16, 2026 |
Benchmark comparison
Side-by-side public benchmark scores. Greener bar = winner.
Chatbot Arena ELOgeneral
Claude Haiku 4.5
1,310
Claude Sonnet 4.5
1,454
AIME 2025math
Claude Haiku 4.5
—
Claude Sonnet 4.5
100.0%
HumanEvalcode
Claude Haiku 4.5
89.5%
Claude Sonnet 4.5
93.7%
MMLU-Proreasoning⚠ different settings
Claude Haiku 4.5
72.4%
Claude Sonnet 4.5
87.4%
BFCL v3agent
Claude Haiku 4.5
79.3%
Claude Sonnet 4.5
85.7%
GPQA Diamondreasoning
Claude Haiku 4.5
55.2%
Claude Sonnet 4.5
84.4%
SWE-bench Verifiedagent
Claude Haiku 4.5
52.0%
Claude Sonnet 4.5
82.0%