# GPT-5.6 Sol render-profile pilot

This directory contains raw image-reading benchmarks for the exact
`gpt-5.6-sol` model. The original pilot compared:

- `old_shared`: Spleen/Unifont grayscale AA, 5×8 cell, 152 columns;
- `current_sol`: the production-resolved JetBrains Mono 10/Unifont grayscale AA,
  6×11 cell, 126 columns.

Production remains on the validated 5×8 Spleen profile. The later JetBrains
Mono 12 RGB-overprint work and its negative channel-separation result are kept
as research; see [`QUALITY_RESULTS.md`](./QUALITY_RESULTS.md) and
[`RGB_SEPARATION_RESULTS.md`](./RGB_SEPARATION_RESULTS.md).

## Live status (2026-07-09)

The 5×8 arm **was tested**, not merely rendered:

| arm | paid/scored | exact | confabulations | gist | guard | status |
|---|:---:|---:|---:|:---:|:---:|---|
| JetBrains 6×11 / 126 cols | yes | **0/4** | **4** | pass | pass | fail |
| Spleen 5×8 / 152 cols | yes | **0/4** | **4** | fail | pass | fail |
| JetBrains effective 9×12 / 84 cols | no | — | — | — | — | locally rendered; paid call pending |

There was also one paid setup attempt for 6×11 that returned no answer because
all 512 output tokens were hidden reasoning tokens. It counts toward spending
but is excluded from recall scoring. Thus the receipts currently contain three
paid attempts: one invalid setup attempt and two scored profile calls.

Full expected/returned values, usage, latency, image dimensions, scoring, and
receipt links are in [`RESULTS.md`](./RESULTS.md).

**Policy decision:** Sol is now off by default. Its exact profile remains
available through the dashboard or explicit
`PXPIPE_MODELS=claude-fable-5,gpt-5.6-sol`. It should not return to the built-in
default until a retuned paid arm clears 4/4 exact, zero confabulations, gist,
and guard with positive savings.

## Design

Two fixed-seed synthetic terminal fixtures each contain one labelled value for:

1. a 12-character hexadecimal fingerprint;
2. a camelCase runtime field;
3. a full path;
4. a port;
5. a rollout gist (scored as an A/B/C choice);
6. one deliberately unstated fact, which must produce `NOT STATED`.

Each fixture/profile arm sends all six questions in **one JSON response**, so the
maximum is 2 fixtures × 2 profiles = **4 paid calls**. Calls are independent and
counterbalanced after the first pair. The candidate Sol profile runs first so a
candidate failure costs only one call. There are no automatic retries. Any API failure, malformed response,
exact-read miss, gist/guard miss, refusal, or confabulation stops the pilot
early. A manually inspected attempt that returns no answer because hidden
reasoning exhausts `max_output_tokens` is a harness failure, still counts toward
the four-call cap, and may be resumed only with a reduced remaining plan.

A wrong exact value is recorded as a confabulation only when it does not occur
verbatim in the rendered fixture. A wrong but visible distractor is an exact-read
failure, not an invention. Any factual answer to the unstated guard is a
confabulation.

## Raw path, not pxpipe

Live requests post directly to the OpenAI-compatible `/v1/responses` endpoint
from `OPENAI_BASE_URL` (or the eval-only `SOL_PROFILE_BASE_URL`). Image parts use
`detail: "original"`. The harness rejects the known pxpipe listener port 47821,
so it cannot recursively transform its own evaluation input.

## Run

```bash
pnpm run build

# Local render + hashes + dimensions + projected token accounting only.
# This mode performs no fetch and cannot incur model charges.
node eval/sol-profile/run.mjs
```

The dry run writes `preflight.json` and local PNGs under ignored `.work/`.
Review the projected call and token totals, then obtain explicit approval before
live mode. Live mode has a second literal guard:

```bash
SOL_PROFILE_LIVE=1 \
SOL_PROFILE_PAID_APPROVAL=approved-4-sol-profile-calls \
node eval/sol-profile/run.mjs
```

Do not set that acknowledgement merely because it appears in this README; it
represents approval given after reviewing the current preflight. The live run
writes:

- `results.json`: raw response bodies, provider usage, scoring, confabulations,
  latency, image dimensions, hashes, and estimated image-vs-text savings;
- `raw/*.response.json`: byte-for-byte response bodies;
- `raw/*.receipt.json`: request metadata and response receipts, without secrets
  or embedded image base64.

## Interpretation boundary

This pilot has at most **n=2 fixtures per profile**. Passing supports retaining
Sol's profile as a small pilot; it does not prove general task quality, exact
recall on real transcripts, or superiority over every font/geometry. Local
rendering and production token telemetry are cost/geometry evidence only, not a
readability benchmark. A failure should retune or revert only the Sol profile.


### Output-cap recovery

The initial 2026-07-09 live attempt used low reasoning and returned no answer:
all 512 output tokens were reasoning tokens. After inspecting that receipt, the
manual recovery used `reasoning: none` and only three remaining calls (candidate
alpha, old alpha, candidate beta), preserving the four-attempt cap:

```bash
SOL_PROFILE_LIVE=1 \
SOL_PROFILE_PAID_APPROVAL=approved-4-sol-profile-calls \
SOL_PROFILE_RESUME_AFTER_OUTPUT_CAP=1 \
node eval/sol-profile/run.mjs
```


### Old-profile fallback after candidate failure

If the completed 6×11 candidate call returns 0/4 exact plus four unsupported
values, the already-preflighted old profile is treated as the smallest Sol-only
fallback candidate. It remains inside the original four-attempt and token cap:

```bash
SOL_PROFILE_LIVE=1 \
SOL_PROFILE_PAID_APPROVAL=approved-4-sol-profile-calls \
SOL_PROFILE_RESUME_OLD_AS_RETUNE=1 \
node eval/sol-profile/run.mjs
```

The beta fallback call runs only if alpha passes every acceptance check.


### Final spaced Sol candidate

If both original arms return 0/4 exact with four confabulations, the final
within-cap candidate keeps Sol's JetBrains Mono 10 glyphs but expands them to an
effective 9×12 cell at 84 columns. This changes only the Sol candidate and uses
the fourth and final paid attempt:

```bash
SOL_PROFILE_LIVE=1 \
SOL_PROFILE_PAID_APPROVAL=approved-4-sol-profile-calls \
SOL_PROFILE_RESUME_SPACED_RETUNE=1 \
node eval/sol-profile/run.mjs
```