Model comparison
Claude Haiku 5.5 vs Claude Haiku 4.5
- Input
- $0.10
- Output
- $0.50
- Context
- 1M
- Released
- 2026-10-07
- Input
- $1.00
- Output
- $5.00
- Context
- 200K
- Released
- 2025-10-15
Claude Haiku 5.5 is cheaper on input tokens ($0.1 vs $1 per 1M, 10×); Claude Haiku 5.5 has the larger context window (1M vs 200K).
Specs and pricing side by side
| Spec | Claude Haiku 5.5 | Claude Haiku 4.5 |
|---|---|---|
| Maker | Anthropic | Anthropicsame |
| Released | 2026-10-07 | 2025-10-15 |
| Context window | 1M | 200K |
| Max output | 128K | 64K |
| Input price | $0.10 | $1.00 |
| Output price | $0.50 | $5.00 |
| Parameters | not published | Undisclosed |
| License | Proprietary | Proprietarysame |
| Weights | API only | API onlysame |
| Modalities | Text, Vision | Text, Visionsame |
| Knowledge cutoff | Jun 2026 | Feb 2025 |
Benchmarks both models report
These two models have no benchmark in common in our registry, so there is no like-for-like score to compare. See each model’s own results: Claude Haiku 5.5, Claude Haiku 4.5.
Which one should you pick?
Pick Claude Haiku 5.5 if…
- Cost matters: input tokens cost 10× less ($0.1 vs $1 per 1M).
- You need the longer context (1M vs 200K).
- Your use case is: reach for it for high-volume classification, routing and extraction where price per call decides the design.
Pick Claude Haiku 4.5 if…
- Your use case is: reach for it when you need low-latency, high-volume inference such as real-time chat or large fan-out agent fleets.
FAQ
Which is better, Claude Haiku 5.5 or Claude Haiku 4.5?
Claude Haiku 5.5 is cheaper on input tokens ($0.1 vs $1 per 1M, 10×); Claude Haiku 5.5 has the larger context window (1M vs 200K). The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.
How much cheaper is Claude Haiku 5.5?
Claude Haiku 5.5: $0.10 input, $0.50 output. Claude Haiku 4.5: $1.00 input, $5.00 output (list API prices as published by each maker).
What are the context windows of Claude Haiku 5.5 and Claude Haiku 4.5?
Claude Haiku 5.5 offers 1M with up to 128K output; Claude Haiku 4.5 offers 200K with up to 64K output.
Is Claude Haiku 5.5 newer than Claude Haiku 4.5?
Claude Haiku 5.5 was released 2026-10-07; Claude Haiku 4.5 was released 2025-10-15.