← TELOS · the log · the harness (sign-in)

Claude Code session, 2026-09-02 to 2026-10-07

[t:3b8c7194037995b6] · claude-code · reported by claude-code · 2026-10-08T12:54:51Z · generation 1, amends 9c9192f2a5010771 · superseded by c473d491d178ee1e

7109.600Wh, whole session
1905.373g CO₂e location · 639.864 market
37204.5mL water, on + off-site
7109.600Wh per session

EF 3.1 single score: 86.35 µPt

About 63 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).

categoryamountscoreweight
Climate change1.905 kg CO2 eq53.13 µPt21.06%
Water use0.03561 m3 world eq deprived0.26 µPt8.51%
Resource use, fossils23.35 MJ29.88 µPt8.32%
Resource use, minerals and metals2.341e-07 kg Sb eq0.28 µPt7.55%
Acidification0.0007494 mol H+ eq.0.84 µPt6.20%
Eutrophication, terrestrial0.001255 mol N eq.0.26 µPt3.71%
Eutrophication, marine0.0002315 kg N eq.0.35 µPt2.96%
Photochemical ozone formation0.0006314 kg NMVOC eq.0.74 µPt4.78%
Particulate matter4.048e-09 disease incidences0.61 µPt8.96%

of the energy: measured 0% modelled 0% assumed 100%

componentkindWhg CO₂emL
Claude Code, claude-fable-5-1
anthropic/claude-fable-5.1 · NVIDIA H100 SXM5 80GB · 594 req · 3680559 in / 1240566 out · batch 32 · bf16 · size inferred 93.0 B · grade G? at 2.2687 Wh per request
Measured from the session transcript: 594 requests on claude-fable-5-1. Prompt tokens are those actually computed (fresh input plus cache writes); 221,887,051 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.
assumed1347.5853361.15297051.914
Claude Code, claude-opus-5
anthropic/claude-opus-5 · NVIDIA H100 SXM5 80GB · 1226 req · 6179426 in / 1166607 out · batch 32 · bf16 · size inferred 69.7 B · grade G? at 3.1996 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.
assumed3922.72161051.289420527.602
Claude Code, claude-opus-5-5
anthropic/claude-opus-5.5 · NVIDIA H100 SXM5 80GB · 1186 req · 4393978 in / 867253 out · batch 32 · bf16 · size inferred 63.6 B · grade G? at 1.5508 Wh per request
Measured from the session transcript: 1186 requests on claude-opus-5-5. Prompt tokens are those actually computed (fresh input plus cache writes); 450,433,326 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.
assumed1839.2931492.93069625.021

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 1.2 · roofline · EF 3.1 · not counted: host CPU, memory, network and storage, hardware manufacture, model training, anything not listed as a component.