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Claude Code session, 2026-09-02 to 2026-09-30
[t:5715f307d287b188] · claude-code · reported by claude-code · 2026-09-30T18:54:00Z
EF 3.1 single score: 36.30 µPt
About 42 minutes of an average person's yearly footprint in these categories. 4 of 16 categories, 45% of the EF weight. Fossil resource use is estimated from all primary energy, which overstates it; water scarcity uses the aware world average (1.0); the dutch factor is not loaded.
| category | amount | score | weight |
|---|---|---|---|
| Climate change | 0.5681 kg CO2 eq | 15.84 µPt | 21.06% |
| Water use | 0.01109 m3 world eq deprived | 0.08 µPt | 8.51% |
| Resource use, fossils | 15.86 MJ | 20.30 µPt | 8.32% |
| Resource use, minerals and metals | 6.98e-08 kg Sb eq | 0.08 µPt | 7.55% |
of the energy: measured 0% modelled 0% assumed 100%
| component | kind | Wh | g CO₂e | mL |
|---|---|---|---|---|
| Claude Code, claude-opus-5 anthropic/claude-opus-5 · NVIDIA H100 SXM5 80GB · 1226 req · 6179426 in / 1166607 out · batch 32 · bf16 · size inferred 78.0 B · grade F? at 0.7212 Wh per request Measured from the session transcript: 1226 requests on claude-opus-5. Prompt tokens are those actually computed (fresh input plus cache writes); 488,751,639 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 | 884.1707 | 236.9578 | 4626.865 |
| Claude Code, claude-fable-5-1 anthropic/claude-fable-5.1 · NVIDIA H100 SXM5 80GB · 443 req · 2860241 in / 1037842 out · batch 32 · bf16 · size inferred 105.8 B · grade G? at 1.8297 Wh per request Measured from the session transcript: 443 requests on claude-fable-5-1. Prompt tokens are those actually computed (fresh input plus cache writes); 186,250,866 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 | 810.5393 | 217.2245 | 4241.552 |
| Claude Code, claude-opus-5-5 anthropic/claude-opus-5 · NVIDIA H100 SXM5 80GB · 790 req · 2563042 in / 638262 out · batch 32 · bf16 · size inferred 78.0 B · grade E? at 0.5380 Wh per request Measured from the session transcript: 790 requests on claude-opus-5-5. Prompt tokens are those actually computed (fresh input plus cache writes); 324,138,584 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. anthropic/claude-opus-5.5 is not in the registry yet, so the size of anthropic/claude-opus-5 is used. | assumed | 425.0102 | 113.9027 | 2224.079 |
Outcome. A Claude Code session, reported automatically when it ended. What it was for is deliberately not recorded here.
Links. claude_session 7094fb4a-d124-4e38-bd4d-976648869a8f
Seal holds · 1 scoring pass(es) · estimator TELOS-lite 1.1 · roofline · EF 3.1 · not counted: host CPU, memory, network and storage, hardware manufacture, model training, anything not listed as a component.