Claude Haiku 4.5 vs Claude 3.5 Haiku: token pricing & cost compared (July 2026)

How Claude Haiku 4.5 (Anthropic) and Claude 3.5 Haiku (Anthropic) actually compare on price — input, output, and total monthly cost at the MAU you care about. Updated against live OpenRouter pricing.

Anthropic

Claude Haiku 4.5

Input: $1.00 / 1M tokens
Output: $5.00 / 1M tokens
Output / Input ratio: 5.0×
Context window: 200K

Anthropic

Claude 3.5 Haiku

Input: $0.00 / 1M tokens
Output: $0.00 / 1M tokens
Output / Input ratio: —
Context window: —

The short answer

Claude 3.5 Haiku is cheaper across the board for typical workloads.

Token pricing side-by-side

Claude Haiku 4.5
Claude 3.5 Haiku

Cost at your usage

Avg input tokens / call

Avg output tokens / call

Calls per active user / day: 5

Active days / month: 20

MAU: 1,000

Claude Haiku 4.5

Per call

$0.00300

Per user / mo

$0.3000

Total / mo

$300

Claude 3.5 Haiku

Per call

$0.00000

Per user / mo

$0.0000

Total / mo

Claude 3.5 Haiku is cheaper by $0.3000/user/month — a saving of $300/month at 1,000 MAU.

Total monthly bill across MAU

Claude Haiku 4.5
Claude 3.5 Haiku

Same usage profile applied to both models; only the per-token price differs.

Run this against your real numbers

The mini-calculator above is a preview. Use the full tools to model power-user blast radius, gross margin, and 12-month spend forecasts.

Other comparisons

Gemini 3.5 Flash vs Claude Haiku 4.5 GPT-4o mini vs Claude 3.5 Haiku GPT-4o mini vs Claude Haiku 4.5 Claude 3.5 Haiku vs Gemini 2.5 Flash Claude Haiku 4.5 vs Gemini 2.5 Flash Claude 3.5 Haiku vs DeepSeek V3

Comparing Claude Haiku 4.5 vs Claude 3.5 Haiku on price alone never tells the whole story — output-token weighting, context length, and your usage profile change the answer dramatically. Use the calculators below for the full picture.