Anthropic
Claude Haiku 4.5
Fast, low-cost Claude model.
Specs
- Provider
- Anthropic
- Family
- Claude
- Context window
- 200,000 tokens
- Max output
- 32,000 tokens
- Input price
- $1 / 1M
- Output price
- $5 / 1M
- Modalities
- text, image
- License
- proprietary
- Released
- Oct 1, 2025
- Training cutoff
- Feb 1, 2025
Estimated footprint
Per single text prompt (token-scaled rows assume ~1,000 tokens).
Footprint numbers are rough public estimates that vary by 10–100× across sources and depend on data-centre efficiency and local grid mix. They are shown as a low–high band with a source and date. Don't treat them as measured fact.
Energy
≈ 0.3 Wh
range 0.1–0.85 Wh
~2 s of a 9 W LED bulb
Third-party estimate · low confidence
Water
≈ 0.35 mL
range 0.12–1 mL
~0.0 s of a shower
Third-party estimate · low confidence
CO₂e
≈ 0.12 g
range 0.04–0.4 g
~1 m driven in a petrol car
Third-party estimate · low confidence
Metric sources
| Metric | Low–Mid–High | Basis | Confidence | As of | Source |
|---|---|---|---|---|---|
| co2 | 0.04 · 0.12 · 0.4 g | per prompt | low | Oct 1, 2025 | Third-party estimate |
| energy | 0.1 · 0.3 · 0.85 Wh | per prompt | low | Oct 1, 2025 | Third-party estimate |
| water | 0.12 · 0.35 · 1 mL | per prompt | low | Oct 1, 2025 | Third-party estimate |
Changelog
- Oct 6, 2026Seeded into PromptLedger reference library.