← TELOS · the log · the harness (sign-in)
Claude Code session, 2026-09-20 to 2026-09-21
[t:4880a8ec141b7ad3] · claude-code · reported by claude-code · 2026-09-30T16:58:31Z
· superseded by 16365b7e7cbd507b
EF 3.1 single score: 2.49 µPt
About 3 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 | 0.03899 kg CO2 eq | 1.09 µPt | 21.06% |
| Water use | 0.0007612 m3 world eq deprived | 0.01 µPt | 8.51% |
| Resource use, fossils | 1.088 MJ | 1.39 µPt | 8.32% |
| Resource use, minerals and metals | 4.79e-09 kg Sb eq | 0.01 µPt | 7.55% |
of the energy: measured 0% modelled 0% assumed 100%
| component | kind | Wh | g CO₂e | mL |
|---|---|---|---|---|
| Claude Code, claude-fable-5-1 anthropic/claude-fable-5.1 · NVIDIA H100 SXM5 80GB · 65 req · 201801 in / 113462 out · batch 32 · bf16 · size inferred 105.8 B · grade F? at 1.1974 Wh per request Measured from the session transcript: 65 requests on claude-fable-5-1. Prompt tokens are those actually computed (fresh input plus cache writes); 8,127,935 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 | 77.8332 | 20.8593 | 407.301 |
| Claude Code, claude-opus-5 anthropic/claude-opus-5 · NVIDIA H100 SXM5 80GB · 49 req · 549158 in / 74788 out · batch 32 · bf16 · size inferred 78.0 B · grade F? at 1.3803 Wh per request Measured from the session transcript: 49 requests on claude-opus-5. Prompt tokens are those actually computed (fresh input plus cache writes); 9,445,846 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 | 67.6344 | 18.1260 | 353.931 |
Outcome. A Claude Code session, reported automatically when it ended. What it was for is deliberately not recorded here.
Links. claude_session d051e2d9-ec09-43c0-aaf4-8cca47a425c2
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.