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Claude Code session, 2026-09-27 to 2026-10-07
[t:32a033c374ef9b37] · claude-code · reported by claude-code · 2026-10-09T07:46:32Z
· generation 4, amends 9594a3267a31df68 · superseded by 7977139f050ad45e
EF 3.1 single score: 40.75 µPt
About 30 minutes 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 | 0.8992 kg CO2 eq | 25.07 µPt | 21.06% |
| Water use | 0.01681 m3 world eq deprived | 0.12 µPt | 8.51% |
| Resource use, fossils | 11.02 MJ | 14.10 µPt | 8.32% |
| Resource use, minerals and metals | 1.105e-07 kg Sb eq | 0.13 µPt | 7.55% |
| Acidification | 0.0003537 mol H+ eq. | 0.39 µPt | 6.20% |
| Eutrophication, terrestrial | 0.0005925 mol N eq. | 0.12 µPt | 3.71% |
| Eutrophication, marine | 0.0001093 kg N eq. | 0.17 µPt | 2.96% |
| Photochemical ozone formation | 0.000298 kg NMVOC eq. | 0.35 µPt | 4.78% |
| Particulate matter | 1.911e-09 disease incidences | 0.29 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 · 1349 req · 5705033 in / 1169212 out · batch 32 · bf16 · size inferred 63.6 B · grade G? at 1.8167 Wh per request Measured from the session transcript: 1349 requests on claude-opus-5-5. Prompt tokens are those actually computed (fresh input plus cache writes); 601,649,130 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 | 2450.7242 | 656.7941 | 12824.640 |
| Claude Code, claude-fable-5-1 anthropic/claude-fable-5.1 · NVIDIA H100 SXM5 80GB · 380 req · 2553084 in / 629431 out · batch 32 · bf16 · size inferred 93.0 B · grade G? at 2.3807 Wh per request Measured from the session transcript: 380 requests on claude-fable-5-1. Prompt tokens are those actually computed (fresh input plus cache writes); 188,530,887 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 | 904.6479 | 242.4456 | 4734.022 |
Outcome. A Claude Code session, reported automatically when it ended. What it was for is deliberately not recorded here.
Links. claude_session d6013ead-a7a1-4498-92dc-fea408b52250
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.