Claude 3.5 Haiku vs Claude 3.5 Sonnet
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: Claude 3.5 Haiku or Claude 3.5 Sonnet?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | Claude 3.5 Haiku | Claude 3.5 Sonnet | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $0.80 | $3.00 | Claude 3.5 Haiku is 3.8x cheaper |
| Output Cost / 1M Tokens | $4.00 | $15.00 | Claude 3.5 Haiku (73.3% lower) |
| Avg TTFT Response Latency | 140ms | 320ms | Claude 3.5 Haiku (+180ms faster) |
| SWE-bench Verified (Coding) | 40.6% | 63.7% | Claude 3.5 Sonnet (+23.1% lead) |
| Inference Value Score (IVR) | 70.4 / 100 | 46 / 100 | Claude 3.5 Haiku (+24.4 pts) |
Interactive Monthly Token Economics & ROI Forecaster
Model your expected production workload across prompt (input) and completion (output) tokens.
Estimated Monthly Spend
$0.8/1M in · $4/1M out
$3/1M in · $15/1M out
When to Choose Claude 3.5 Haiku
Choose Claude 3.5 Haiku when you need High-speed API routing, conversational triage, extraction, and edge agent tasks. and have an infrastructure budget aligned with $0.80/1M tokens.
When to Choose Claude 3.5 Sonnet
Choose Claude 3.5 Sonnet when you need Full-stack code generation, production AI agents, complex visual diagram parsing, and enterprise document workflows. and prioritize Anthropic ecosystem integration at $3.00/1M tokens.
Related Questions & Decision Factors
Which is cheaper: Claude 3.5 Haiku or Claude 3.5 Sonnet?
Claude 3.5 Haiku is cheaper at $0.80/1M input tokens compared to $3.00/1M for Claude 3.5 Sonnet.
Which model has lower latency: Claude 3.5 Haiku or Claude 3.5 Sonnet?
Claude 3.5 Haiku delivers faster response times with an average TTFT of 140ms vs 320ms for Claude 3.5 Sonnet.
When should you choose Claude 3.5 Haiku?
Choose Claude 3.5 Haiku when you need High-speed API routing, conversational triage, extraction, and edge agent tasks. and have an infrastructure budget aligned with $0.80/1M tokens.
When should you choose Claude 3.5 Sonnet?
Choose Claude 3.5 Sonnet when you need Full-stack code generation, production AI agents, complex visual diagram parsing, and enterprise document workflows. and prioritize Anthropic ecosystem integration at $3.00/1M tokens.