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Claude Code session, 2026-10-17
[t:d03ebe6ba4b82438] · claude-code · reported by claude-code · 2026-10-17T14:13:46Z
EF 3.1 single score: 0.25 µPt
About 11 seconds of an average person's yearly footprint in these categories. 9 of 16 categories, 72% of the EF weight. Fossil resource use counts the fuel burnt for dutch electricity, not its supply chain; water scarcity uses the aware factor for the netherlands (0.957).
| category | amount | score | weight |
|---|---|---|---|
| Climate change | 0.005416 kg CO2 eq | 0.15 µPt | 21.06% |
| Water use | 0.0001012 m3 world eq deprived | 0.00 µPt | 8.51% |
| Resource use, fossils | 0.06637 MJ | 0.08 µPt | 8.32% |
| Resource use, minerals and metals | 6.655e-10 kg Sb eq | 0.00 µPt | 7.55% |
| Acidification | 2.13e-06 mol H+ eq. | 0.00 µPt | 6.20% |
| Eutrophication, terrestrial | 3.569e-06 mol N eq. | 0.00 µPt | 3.71% |
| Eutrophication, marine | 6.582e-07 kg N eq. | 0.00 µPt | 2.96% |
| Photochemical ozone formation | 1.795e-06 kg NMVOC eq. | 0.00 µPt | 4.78% |
| Particulate matter | 1.151e-11 disease incidences | 0.00 µPt | 8.96% |
of the energy: measured 0% modelled 0% assumed 100%
| component | kind | Wh | g CO₂e | mL |
|---|---|---|---|---|
| Claude Code, claude-opus-5-5 anthropic/claude-opus-5.5 · NVIDIA H100 SXM5 80GB · 27 req · 83764 in / 13047 out · batch 32 · bf16 · size inferred 63.6 B · grade E? at 0.5950 Wh per request Measured from the session transcript: 27 requests on claude-opus-5-5. Prompt tokens are those actually computed (fresh input plus cache writes); 2,450,573 more were read from the prompt cache and are not recomputed, and loading that cache is not modelled. The model's size is not published, so it is inferred from its price. | assumed | 16.0662 | 4.3057 | 84.075 |
| Claude Code, claude-fable-5-1 anthropic/claude-fable-5.1 · NVIDIA H100 SXM5 80GB · 2 req · 38098 in / 1512 out · batch 32 · bf16 · size inferred 93.0 B · grade G? at 2.0721 Wh per request Measured from the session transcript: 2 requests on claude-fable-5-1. Prompt tokens are those actually computed (fresh input plus cache writes); 96,632 more were read from the prompt cache and are not recomputed, and loading that cache is not modelled. The model's size is not published, so it is inferred from its price. | assumed | 4.1442 | 1.1106 | 21.686 |
Outcome. A Claude Code session, reported automatically when it ended. What it was for is deliberately not recorded here.
Links. claude_session 09373659-0740-4366-b1b9-503a8041f2b6
Seal holds · 1 scoring pass(es) · estimator TELOS-lite 1.2 · roofline · EF 3.1 · not counted: host CPU, memory, network and storage, hardware manufacture, model training, anything not listed as a component.