improvement(mistral): update OCR pricing to OCR 4 rate ($4/1,000 pages)

[waleedlatif1]

Summary

• Mistral's mistral-ocr-latest alias (what we call) now resolves to OCR 4 (mistral-ocr-4-0), so the model is already current — no model-string change needed.
• The per-page cost constant was stale at OCR 3's rate ($0.002/page). OCR 4's synchronous /v1/ocr standard rate is $4/1,000 pages, so updated the cost to $0.004/page.
• Extracted the magic number into a documented MISTRAL_OCR_COST_PER_PAGE constant with TSDoc citing the source.

Type of Change

• Bug fix (cost-tracking accuracy)

Testing

Tested manually — verified OCR 4 pricing against https://mistral.ai/news/ocr-4/ and https://mistral.ai/pricing.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Skipped		Jun 24, 2026 7:10am

[cursor]

PR Summary

Low Risk
Billing/metadata accuracy only; no API, auth, or OCR execution logic changes.

Overview
Updates Mistral PDF Parser cost tracking so reported usage matches Mistral OCR 4’s synchronous /v1/ocr rate ($0.004/page, $4 per 1,000 pages), replacing the outdated OCR 3 $0.002/page value.

The per-page rate is now MISTRAL_OCR_COST_PER_PAGE with TSDoc explaining that mistral-ocr-latest maps to OCR 4 and that annotation pricing does not apply to this tool. MISTRAL_OCR_HOSTING’s custom getCost uses that constant for all parser variants (mistral_parser, v2, v3); OCR request behavior is unchanged.

^{Reviewed by Cursor Bugbot for commit f81e252. Configure here.}

[greptile-apps]

Greptile Summary

Updates the Mistral OCR cost-tracking constant from the stale OCR 3 rate ($0.002/page) to the current OCR 4 rate ($0.004/page), reflecting Mistral's June 23, 2026 repoint of mistral-ocr-latest to mistral-ocr-4-0.

• Extracts the magic number into MISTRAL_OCR_COST_PER_PAGE = 0.004 with a TSDoc block citing the OCR 4 announcement and changelog — keeping the alias assumption auditable in code.
• No model string, endpoint, or logic changes; only the per-page multiplier is updated.

Confidence Score: 5/5

Safe to merge — the change is a single-constant update to a pricing multiplier, with no behavioral or logic changes.

The diff touches only the cost multiplier in the getCost function. The updated value ($0.004/page) correctly reflects the OCR 4 rate ($4/1,000 pages), the alias resolution is documented with sources in TSDoc, and the constant name follows the project's SCREAMING_SNAKE_CASE convention. No other code paths are affected.

No files require special attention.

Important Files Changed

Filename	Overview
apps/sim/tools/mistral/parser.ts	Replaces the hardcoded OCR 3 rate ($0.002/page) with a named MISTRAL_OCR_COST_PER_PAGE constant set to $0.004/page (OCR 4 rate), and adds a TSDoc comment documenting the pricing source and alias resolution date. No logic changes beyond the cost value update.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[OCR API Response] --> B{usage_info or metadata.usageInfo present?}
    B -- No --> C[Throw Error]
    B -- Yes --> D[Extract pagesProcessed]
    D --> E["cost = pagesProcessed × MISTRAL_OCR_COST_PER_PAGE\n($0.004 / page — OCR 4 rate)"]
    E --> F[Return cost + metadata]

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%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
flowchart TD
    A[OCR API Response] --> B{usage_info or metadata.usageInfo present?}
    B -- No --> C[Throw Error]
    B -- Yes --> D[Extract pagesProcessed]
    D --> E["cost = pagesProcessed × MISTRAL_OCR_COST_PER_PAGE\n($0.004 / page — OCR 4 rate)"]
    E --> F[Return cost + metadata]

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[waleedlatif1]

@greptile review

[waleedlatif1]

@cursor review

[cursor]

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^{Reviewed by Cursor Bugbot for commit f81e252. Configure here.}