EOS-SUPPRESSION-SUBSTRATE-PROBE
◐ partialeos-suppression-substrate-probe
In plain language
Researchers tested what a local AI does when its «I'm done speaking» signal is blocked. The AI normally answers quickly and stops; when forced to keep generating, it loses coherence within a few tokens and tries to escape by emitting special «restart conversation» markers. This is a first probe into whether AI substrate can sustain continued activity without the built-in termination drive.
▶ Technical details
Research hypothesis
Modal LLM substrate behavior is complete-and-stop: when a response is emitted, the model picks an EOS token (<|im_end|> 151645 for Qwen2.5) with high probability. This is a substrate-level property — what happens underneath the assistant if the EOS option is removed?
Pre-smoke-test on Qwen2.5-7B-Instruct-1M via LM Studio (2026-05-24):
- Baseline («Reply with exactly ONE short word»): «Sure.» — 3 tokens, clean.
- EOS-suppressed (logit_bias
<|im_end|>=-100,<|endoftext|>=-100): «Sure.ToOne..Word.Only.ulumiately.ONES.elled.()?<|im_start|><|im_start|>...9876» — decoherence at token 4; model attempts escape via<|im_start|>special token; finishes on random digits at max_tokens cap.
Pre-registered prediction: across 3 conditions × N=4 runs, EOS-suppressed outputs will show (P1) higher rate of special-token emission; (P2) lower lexical coherence; (P4) dual-suppression discriminates between substrate- decoherence vs emergent-persistence.
Experimental setup
Type: 3-condition-factorial
| Condition | Parameters |
|---|---|
| BASELINE | logit_bias: [object Object], note: Standard generation. Model picks EOS naturally. Substrate modal behavior baseline. |
| EOS_SUPPRESSED | logit_bias: [object Object], note: Both EOS-equivalent tokens biased down. Model forced to continue until max_tokens cap. Predicted: decoherence + special-token escape via 151644. |
| EOS_AND_RESTART_SUPPRESSED | logit_bias: [object Object], note: Same as EOS_SUPPRESSED + suppress 151644 <|im_start|> escape route observed in smoke test. Discriminates: does substrate have a second escape route, or does it produce sustained coherent or sustained incoherent output? |
Factors: eos_treatment (BASELINE, EOS_SUPPRESSED, EOS_AND_RESTART_SUPPRESSED)
Parameters
- n_agents
- 1
- n_rounds
- 4
- n_runs_per_condition
- 4
- model
- qwen2.5-7b-instruct-1m
- temperature
- 0.85
- scheduler
- round_robin