Interfaze

logo

we're hiring

pricing

help

docs

blog

sign in

Backed by

Y Combinator

Combinator

Interfaze vs Mistral OCR

More fields right on hard scans, in one API call.

One API call reads documents, images and audio and returns structured JSON. Every response also includes the OCR underneath, with bounding boxes and a confidence score for each word.

Build now

Trusted by builders at

NVIDIA
IBM
Vercel
Supabase
Notion
Zapier
Robinhood
Airwallex
Langflow
Smithery
Rho
Pocket
101 GenAI
Aegis
RMH
INTH
Andco

Why teams choose Interfaze over Mistral OCR

Word boxes you can check, more fields right on hard scans, documents and audio in one call, and the SDK you already use.

INVOICE

NO.

INV-20418

DATE

2026-09-03

1,200.00

3,620.50

TOTAL

$4,820.50

total_due

0.98

01

Data you can verify

Check extracted text with word boxes and confidence scores. Flag uncertain reads for review.

.pdf
.jpg
.mp3
URL

02

Documents and audio together

Send a document and a recording in one request. Mistral OCR takes one document per request, and audio goes to a separate model.

LINE ITEMS

ITEM

QTY

AMOUNT

Valve, 2in

12

1,104.00

Gasket kit

40

386.40

Labour, site

6h

720.00

TOTAL

2,210.40

Net 30. 1.5% monthly on overdue balances. Prices exclude VAT at the prevailing rate.

03

Better on hard-to-read scans

On our 39-document test, interfaze-1 read 97.5% of fields right against 90.1% for Mistral OCR 4.1, with the widest gap on rotated and faint text.

OpenAI SDK

import OpenAI from "openai";

new OpenAI({

baseURL:

"https://api.interfaze.ai/v1",

apiKey: INTERFAZE_API_KEY

});

Stream response

04

Keep your existing client

Extract documents through OpenAI-compatible Chat Completions. Use your current SDK and stream the result.

Interfaze vs Mistral OCR on the same document

Same pages and same fields, sent to both APIs. Three selected pages where interfaze-1 got more fields right. Pick one to see where each API placed its fields, or the JSON it returned.

Newspaper op-ed

LinkedIn printout

Tiny-print table

Boxes on the page

Returned JSON

correct value

wrong value, boxed where the API read it

no box from the API: boxed where the value is

○

not returned

Interfazeinterfaze-1

structured JSON

22/22 field checks passed

✓

headline

Climate of Fear

1.00

✓

byline

By Richard Lindzen

0.99

✓

publication_name

The Wall Street Journal

0.99

✓

section_label

OPINION

0.99

✓

issue_date

WEDNESDAY, APRIL 12, 2006

1.00

✓

author_affiliation

Mr. Lindzen is Alfred P. Sloan Professor of Atmospheric Science at MIT.

0.97

✓

climate_research_spending_today

$1.7 billion

0.99

✓

co2_increase_percent

30%

0.96

✓

warmest_year_claimed

1998

0.99

✓

hearings_year

1992

0.99

✓

named_effect

Iris Effect

0.93

✓

photo_credit

Images.com/Corbis

0.59

✓

tv_host

Ted Koppel

0.99

✓

libel_author

Ross Gelbspan

0.99

✓

dismissed_director

Henk Tennekes

0.99

✓

wmo_director

Aksel Winn-Nielsen

Read correctly.

✓

ipcc_first_head

Bert Bolin

0.97

✓

debate_year

1991

0.99

✓

ipcc_claim_source

Sir John Houghton

0.99

✓

texas_rep

Joe Barton

0.99

✓

paleoclimatologist

Michael Mann

0.99

✓

climate_plan_year

2003

0.99

Mistralmistral-ocr-latest

structured JSON

19/22 field checks passed

✗

warmest_year_claimed

1988 · page says 1998

No box returned. The box marks where the value is on the page.

✗

libel_author

Ross Geibspan · page says Ross Gelbspan

No box returned. The box marks where the value is on the page.

○

photo_credit

not returned · page says Images.com/Corbis

Not returned. The box marks where the value is on the page.

✓

headline

Climate of Fear

0.99

✓

byline

By Richard Lindzen

1.00

✓

publication_name

The Wall Street Journal

1.00

✓

section_label

OPINION

1.00

✓

issue_date

WEDNESDAY, APRIL 12, 2006

1.00

✓

author_affiliation

Mr. Lindzen is Alfred P. Sloan Professor of Atmospheric Science at MIT.

1.00

✓

climate_research_spending_today

$1.7 billion

Read correctly.

✓

co2_increase_percent

about 30%

Read correctly.

✓

hearings_year

1992

Read correctly.

✓

named_effect

"Iris Effect"

Read correctly.

✓

tv_host

Ted Koppel

Read correctly.

✓

dismissed_director

Henk Tennekes

Read correctly.

✓

wmo_director

Aksel Winn-Nielsen

Read correctly.

✓

ipcc_first_head

Bert Bolin

Read correctly.

✓

debate_year

1991

Read correctly.

✓

ipcc_claim_source

Sir John Houghton

Read correctly.

✓

texas_rep

Joe Barton

Read correctly.

✓

paleoclimatologist

Michael Mann

Read correctly.

✓

climate_plan_year

2003

Read correctly.

One API call instead of a pipeline

Mistral OCR reads one document per request, and audio goes to a separate model. With Interfaze you send them together.

Audio docs

Claims intake

Form + photo

Interfaze vs Mistral OCR accuracy benchmarks

Same 39 documents, same field list, first call to each API. Share of fields read correctly, with disagreements checked by hand against the page.

Accuracy by content type

higher is better

Content

Interfaze

Mistral

All fields

every field on all 39 documents · 433 fields

97.5%

90.1%

Rotated, upside-down & faint text

upside-down pages, rotated margin numbers, vertical and faint text · 22 fields

86.4%

59.1%

Fine print

stamps, footers, Bates numbers, small type · 72 fields

95.8%

83.3%

Tables

cells in dense and scanned tables · 74 fields

97.3%

90.5%

Numbers

amounts, IDs, dates and counts · 97 fields

99.0%

93.8%

Handwriting

handwritten notes, stamps and envelopes · 34 fields

88.2%

85.3%

Body text

names, titles, labels and running text · 120 fields

99.2%

92.5%

Method ->

Interfaze vs Mistral OCR on olmOCR-bench

Scores from the public olmOCR benchmark. The overall ranking first, then the three tasks with the biggest gap.

Full breakdown

Interfaze vs Mistral OCR, feature by feature

Checked against both companies' docs. Mistral entries refer to its OCR service; open weights refer to Interfaze Lite.

Interfaze

Mistral OCR

Word-level bounding boxes

Locate individual words and lines with pixel bounds in OCR precontext.

Word-level bounding boxes

Its docs list paragraph-level boxes, not individual word boxes. Word confidence is supported.

Streaming output

Stream text and structured output as it is generated.

Streaming output

The documented OCR endpoint returns a complete response, without streaming.

OpenAI-compatible extraction

Use Chat Completions with your existing OpenAI or Vercel AI SDK client.

OpenAI-compatible extraction

OCR uses a separate endpoint and request format, outside Chat Completions.

Open weights

The separate interfaze-1.1-lite model runs on one 80 GB GPU.

Open weights

No public weights listed for Mistral OCR; other Mistral models have open weights.

Audio and video input

One interface for documents, images and audio; interfaze-1 also accepts video.

Audio and video input

The OCR endpoint accepts documents and images. Audio uses separate Mistral models.

Structured JSON output

Your JSON schema through Chat Completions, alongside OCR precontext.

Structured JSON output

Your JSON schema through document annotations on the OCR endpoint.

OCR confidence scores

Word and line confidence scores in OCR precontext.

OCR confidence scores

Configurable word, block or page confidence scores.

How to migrate from Mistral OCR to Interfaze

The same document and schema, side by side. Keep your validation, switch the API call, or let your coding agent help.

SDK guide

Interfaze

OpenAI SDK

Vercel AI SDK

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.interfaze.ai/v1",
  apiKey: process.env.INTERFAZE_API_KEY,
});

const res = await client.chat.completions.create({
  model: "interfaze-1",
  response_format: {
    type: "json_schema",
    json_schema: { name: "invoice", schema: INVOICE_SCHEMA },
  },
  messages: [{
    role: "user",
    content: [
      { type: "text", text: "Extract the fields" },
      { type: "file", file: { filename: "invoice.pdf",
        file_data: pdfUrl } },
    ],
  }],
});
const invoice = JSON.parse(res.choices[0].message.content);

Mistral OCR

import { Mistral } from "@mistralai/mistralai";

const client = new Mistral({
  apiKey: process.env.MISTRAL_API_KEY,
});

const res = await client.ocr.process({
  model: "mistral-ocr-latest",
  document: { type: "document_url", documentUrl: pdfUrl },
  documentAnnotationFormat: {
    type: "json_schema",
    jsonSchema: {
      name: "invoice",
      schemaDefinition: INVOICE_SCHEMA,
      strict: true,
    },
  },
  documentAnnotationPrompt: "Extract the fields",
});
if (!res.documentAnnotation) throw new Error("No annotation");
const invoice = JSON.parse(res.documentAnnotation);

Interfaze vs Mistral OCR: common questions

Accuracy, integration and what to check before switching.

Send us your hardest PDF.
If we can't beat your current provider,
we'll give you $3,000 in credits.

Start for free. No credit card required.

Build nowTalk to a founder

Interfaze

logo

Product

Playground

OCR

Models

Leaderboards

Pricing

OpenWebSearch

DefaultModel