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Claude Code session, 2026-09-27 to 2026-10-12
[t:7977139f050ad45e] · claude-code · reported by claude-code · 2026-10-12T19:41:46Z
· generation 5, amends 32a033c374ef9b37 · superseded by ceeba4a84ec48ce1
EF 3.1 single score: 67.85 µPt
About 50 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 | 1.497 kg CO2 eq | 41.74 µPt | 21.06% |
| Water use | 0.02798 m3 world eq deprived | 0.21 µPt | 8.51% |
| Resource use, fossils | 18.35 MJ | 23.48 µPt | 8.32% |
| Resource use, minerals and metals | 1.84e-07 kg Sb eq | 0.22 µPt | 7.55% |
| Acidification | 0.0005888 mol H+ eq. | 0.66 µPt | 6.20% |
| Eutrophication, terrestrial | 0.0009864 mol N eq. | 0.21 µPt | 3.71% |
| Eutrophication, marine | 0.0001819 kg N eq. | 0.28 µPt | 2.96% |
| Photochemical ozone formation | 0.0004962 kg NMVOC eq. | 0.58 µPt | 4.78% |
| Particulate matter | 3.181e-09 disease incidences | 0.48 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 · 2369 req · 11353823 in / 2077125 out · batch 32 · bf16 · size inferred 63.6 B · grade G? at 1.9053 Wh per request Measured from the session transcript: 2369 requests on claude-opus-5-5. Prompt tokens are those actually computed (fresh input plus cache writes); 1,099,191,321 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 | 4513.6072 | 1209.6467 | 23619.707 |
| Claude Code, claude-fable-5-1 anthropic/claude-fable-5.1 · NVIDIA H100 SXM5 80GB · 409 req · 3682092 in / 726496 out · batch 32 · bf16 · size inferred 93.0 B · grade G? at 2.6229 Wh per request Measured from the session transcript: 409 requests on claude-fable-5-1. Prompt tokens are those actually computed (fresh input plus cache writes); 201,574,674 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 | 1072.7761 | 287.5040 | 5613.837 |
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.