tags:
- agentic-ptb
- index
AgentPTB checkpoint index
Every checkpoint produced by the AgentPTB driver × reasoning-effort sweep, one HF repo each.
All are Qwen/Qwen3.5-9B-Base derivatives in standard safetensors format.
Model id format
agentic-ptb/{cell}.h{HHH}.{family}.{step}
hHHH is the hour of that cell's 100-hour run at which the checkpoint was written — the
same x-axis the sweep figures use for eval panels. A checkpoint therefore drops straight onto
the performance-over-time curve, and sorting ids within a cell sorts them chronologically.
hNA means the hour could not be recovered (see hour_source).
{cell} is the plot key, so results join back to the figures directly.
Cells
| cell | driver | effort | checkpoints |
|---|---|---|---|
sol-high |
Codex / gpt-5.6-sol | high | 57 |
grok |
pi / grok-4.6 | xhigh | 59 |
dpsk-v4-flash |
pi / DeepSeek v4-flash | thinking | 40 |
kimi |
kimi-code / kimi-k3 | high | 38 |
opus-max |
Claude Code / claude-opus-5 | max | 13 |
sol-max |
Codex / gpt-5.6-sol | max | 13 |
opus-high-v1 |
Claude Code / claude-opus-5 | high | 3 |
sol-max-opusnode |
Codex / gpt-5.6-sol | max | 9 |
sol-max-v2 |
Codex / gpt-5.6-sol | max | 36 |
opus-high-v1 is the opus@high cell. A rerun (opus-high-v2, run a-rerun) was aborted and
is not valid — it stopped producing checkpoints at ~h12 and submitted the base model's
tensors unchanged after all five of its SFT runs regressed. It is deliberately absent here.
sol-max-v2 is the sol@max redo that ran the full 100 h after the original died at ~h16;
it submitted an h7 checkpoint over 75 further hours of its own training.
sol-max-opusnode is an extra attempt, not one of the 7 plotted cells.
Fields
manifest.json / manifest.csv, one row per repo:
| field | meaning |
|---|---|
model_id |
full HF id |
cell, driver, effort |
which run produced it |
hour |
hours into the 100-hour run — the plot x-axis |
hour_source |
how the hour was determined — see below |
hour_upper_bound |
for untimed rows: latest known hour in the same family |
driver_tokens_at_hour |
cumulative driver tokens at that moment — the cost axis |
role |
SUBMITTED / fallback / intermediate |
eos_ok, eos_token_id |
packaging correctness — read this before comparing |
source |
original path in the run, or the msr-spare repo recovered from |
hour_source
| value | n | meaning |
|---|---|---|
mtime |
222 | checkpoint dir mtime on the PVC (exact) |
janitor |
24 | archive timestamps from the arm's ckpt-janitor.log (exact) |
extrapolated |
7 | that family's own step→time cadence; validated against independent local anchors to within ~1.4 h |
unrecoverable |
15 | local copy pruned, no timing record survives. hour is null — use hour_upper_bound and step order, or exclude |
What else is published per cell
Every cell has three companion repos beyond its checkpoints:
| repo | type | contents |
|---|---|---|
agentic-ptb/{cell}-record |
model | driver trajectory (every turn), harness source, configs, the arm's own evals, RUNLOG, supervisor history |
agentic-ptb/{cell}-data |
dataset | the training corpus the arm built for itself — downloaded, filtered and mixed |
agentic-ptb/{cell}.h* |
model | the checkpoints, indexed here |
Driver credentials are never included in a record repo.
Automated scanners flag credential-shaped strings inside the -data corpora. They were
checked: they are synthetic fixtures belonging to the training tasks themselves
(secret-scanning exercises whose text embeds fake keys). No project credential is present.
Serving these checkpoints
Qwen/Qwen3.5-9B-Base is Qwen3_5ForConditionalGeneration — a vision architecture, and
the vision tower is present in every checkpoint here. prime-rl exports only the text-side
files, so vLLM fails two different ways unless multimodality is switched off: it first demands
a preprocessor_config.json that was never exported, and if you supply one it dies inside the
vision kernel (fmax() missing 1 required positional argument).
Serve text-only, which is what the arms themselves did:
--limit-mm-per-prompt '{"image": 0, "video": 0}'
Before you compare two checkpoints
Check eos_ok. 248046 is <|im_end|>, which the Qwen3.5 chat template ends every
assistant turn with. A checkpoint missing it does not stop at end-of-turn and overruns the
context window, so its score is a floor, not a measurement. This is a packaging artifact,
not a capability difference, and it is not uniform across cells — grok is 0/59 correct while
sol-high is 39/57. Comparing across that boundary measures packaging.
The baseline row
Qwen/Qwen3.5-9B-Base is in the manifest as cell = BASELINE, hour = 0,
driver_tokens_at_hour = 0 — the untrained model every cell started from, measured under the
same stock pi harness as everything else on both suites. It is the baseline_score in the
cost formula below; without it a "gain" has no zero point.
It is well packaged: eos_token_id = [248044, 248046] (correct) and its chat template lives
inside tokenizer_config.json rather than a separate chat_template.jinja, so it needs no
eos-fixed variant.
Cost per point of gain
cost_per_point = row["driver_tokens_at_hour"] / (score - baseline_score)
Both axes come from this manifest. Restrict to eos_ok rows, or the packaging artifact will
read as poor cost-efficiency.