Autocaption

Available

fictions-ai · fictions-ai/autocaption

Tasks using this model

Input contract

Required inputs
video_file_input
Optional inputs
font, color, kerning, opacity, MaxChars, fontsize, translate, output_video, stroke_color, stroke_width, right_to_left, subs_position, highlight_color, output_transcript, transcript_file_input
Output
video, transcript (uri-array)
Submission
Pinned community version

Provider billing

No standard page rate; calibrated 2026-10-06 from measured runs at the community fleet rate (≈$0.000927/s hardware): 4-5 s speech videos → predict 1.0-2.3 s ≈ $0.001-0.0022 per run, scaling with audio length.

Provider-side unit, for reference only. This site charges a fixed credit tier per execution — the price shown at quoting time is the price paid.

Contract notes

translate means translate INTO English only — never advertised as multi-language captioning. Supports uploading an edited transcript to re-run the burn-in (transcript_file_input — not exposed in the v2 form yet). MEASURED 2026-10-06 (batch F runs report): the output is an ARRAY — output.mp4 (captioned, keeps audio) then transcript_out.json (word-level timestamps); Chinese speech transcribes correctly but the ASR emits TRADITIONAL variants of some characters (今天天氣很好… from a simplified zh_CN utterance) — the Chinese copy stays honest about this; English output follows the speech length (4.11 s video from a 4.11 s speech source). Cost scales with audio length (predict 1.0 s zh / 2.3 s en for 4-5 s sources). Enabled 2026-10-06: batch F deployed-app E2E green (batch-f-e2e report).

Status

This model is catalogued and its contract is locked, but real executions have not passed acceptance yet. Nothing on this page should be read as a claim that it is usable today.

License
Community model; license not yet reviewed.
Last verified
2026-10-05

Sources

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