OpenAI
GPT-4o
Omni model, fast multimodal chat.
Specs
- Provider
- OpenAI
- Family
- GPT
- Context window
- 128,000 tokens
- Max output
- 16,384 tokens
- Input price
- $2.5 / 1M
- Output price
- $10 / 1M
- Modalities
- text, image, audio
- License
- proprietary
- Released
- May 13, 2024
- Training cutoff
- Oct 1, 2023
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 0.1–0.9 Wh
~2 s of a 9 W LED bulb
Third-party estimate (Epoch AI) · low confidence
CO₂e
≈ 0.2 g
range 0.05–0.6 g
~2 m driven in a petrol car
Third-party estimate (Epoch AI) · low confidence
Metric sources
| Metric | Low–Mid–High | Basis | Confidence | As of | Source |
|---|---|---|---|---|---|
| co2 | 0.05 · 0.2 · 0.6 g | per prompt | low | Feb 1, 2025 | Third-party estimate (Epoch AI) |
| energy | 0.1 · 0.3 · 0.9 Wh | per prompt | low | Feb 1, 2025 | Third-party estimate (Epoch AI) |
| water | 0.15 · 0.45 · 1.2 mL | per prompt | low | Feb 1, 2025 | Third-party estimate (Epoch AI) |
Changelog
- Oct 6, 2026Seeded into PromptLedger reference library.