Backed by
Microsoft
UC Berkeley
Google

Grade Writing Benchmarks in Hours, Not Weeks

The only AI grading platform purpose-built for K-12 writing benchmarks. Grade thousands of constructed responses and essays in minutes with scoring aligned to STAAR, CAASPP, SC Ready, or any state rubric.

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Used at 1000+ schools

Why Districts Choose
CoGrader Assessment Platform

The fastest, most accurate way to grade written responses for benchmark assessments

Results in Hours, Not Weeks

Get complete scores and analytics for all written responses - essays, constructed responses, and short answers - within hours of student submission.

Trained on state benchmarks

Built specifically for K-12 writing assessment. CoGrader is trained on actual state rubrics and scoring guidelines.

Instant Benchmark Data

Run district-wide benchmark assessments and get actionable data immediately. No more waiting for hand-scoring or external vendors.

All Written Formats

Grade every type of assessment writing: argumentative essays, literary analysis, constructed responses, and short answer questions.

Privacy is a
Top Priority

CoGrader ensures the highest student Data Privacy and Security. Student information is protected, and never sold.

FERPA, COPPA, SOPIPA, Ed Law 2D
CoGrader abides by FERPA, COPPA, SOPIPA, Ed Law 2D, and other state privacy laws to safeguard student data.
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Data Collection & Usage
Only de-identified student work and rubrics are shared with the AI. LLM / AI models can not use student data for training purposes.
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SOC II Compliant
Our systems and data meet strict SOC II standards, ensuring robust controls for data security, availability, and confidentiality.

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Built for Writing Assessment

Everything you need to master the written components of state assessments

Benchmark Writing Performance Instantly

Stop waiting weeks for writing scores. CoGrader Assessment Platform grades thousands of practice essays and constructed responses in minutes, giving you the data you need to intervene before it's too late.

Grade district-wide writing benchmarks in under an hour
Score against the actual STAAR and CAASPP rubrics
Identify students struggling with written components
Track writing progress throughout the year

Master Writing Requirements

Every assessment has specific writing expectations. CoGrader Assessment Platform knows exactly what STAAR, CAASPP, ELPAC, and other assessments are looking for in student responses.

Aligned to Texas STAAR writing rubrics
Calibrated for state standards
Predicts actual assessment writing scores

Actionable Analytics in Real-Time

Don't wait until after state testing to discover writing gaps. Get comprehensive analytics on every written response, identifying exactly where students need support.

Individual student writing reports
Class and grade-level trend analysis
Standards-based performance breakdowns
District-wide writing performance dashboards
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From Benchmark to Results in Hours

See how quickly you can go from writing assessment to actionable data
1

Upload Your Benchmark

Upload your district's writing benchmark aligned to state assessment formats
2

Students Write Responses

Students complete essays, constructed responses, or short answers online
3

AI Grades in Minutes

CoGrader grades all written responses using state assessment rubrics - typically within minutes
4

Review Analytics

Access comprehensive reports showing individual, class, and district writing performance
5

Targeted Intervention

Use data to provide targeted writing support before state assessments

Perfect for Key Assessments

Trained on actual rubrics and scoring guidelines for the assessments that matter most
STAAR (Texas)
CAASPP (California)
ELPAC
Smarter Balanced
TELPAS
District Benchmarks
AP Exams
All Written Assessments

Stop Waiting Weeks for Writing Scores

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Frequently Asked Questions

CoGrader: the AI Teaching Assistant.

How does CoGrader's assessment platform work for district-wide benchmarks?

CoGrader's assessment platform allows districts to score and analyze writing benchmarks at scale - delivering complete results in hours instead of weeks. Upload student responses from any assessment (STAAR practice, CAASPP benchmarks, or custom district assessments), and our AI scores every essay and constructed response against your chosen rubric.
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The platform provides instant district-wide analytics showing performance by school, grade level, teacher, and individual standard. You can identify which students need intervention, which skills require reteaching, and how your district compares to state benchmarks—all on the same day students complete the assessment.
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Unlike traditional hand-scoring or external scoring vendors, CoGrader eliminates the weeks-long wait time between assessment administration and actionable data. This means teachers can intervene while the content is still fresh and students haven't moved on to new units.

What assessment formats can CoGrader grade?

CoGrader's assessment platform grades all written response formats used in K-12 assessments:

Long-form writing:
- Full essays (argumentative, expository, narrative)
- Literary analysis and text-based responses
- Extended constructed responses (ECRs)
- Multi-paragraph responses

Short-form responses:
- Short constructed responses (SCRs)
- Brief constructed responses (BCRs)
- Short answer questions (2-5 sentences)
- Evidence-based responses

State-specific formats:
- STAAR compositions and short answers (grades 3-8, English I-II)
- CAASPP performance tasks and extended responses
- Any assessment aligned to Common Core or state standards

The platform handles assessments ranging from 50-word short answers to 600-word essays, with custom rubrics for each format. You can mix multiple question types within a single assessment—the AI automatically applies the appropriate rubric to each response.

How quickly can we get results from a district-wide benchmark?

For most districts: 2-4 hours from upload to complete scored results.
Here's the typical timeline:

Upload: Teachers or assessment coordinators upload student responses (5-15 minutes)
AI Scoring: CoGrader scores all responses automatically (1-2 hours for 5,000+ students)
Review: Educators review and adjust scores as needed (1-2 hours, can be done in parallel)
Distribution: Scored assessments export back to your LMS or generate reports (15 minutes)

Compare this to traditional methods:

Hand-scoring: 2-4 weeks for district-wide scoring
External vendors: 3-6 weeks plus shipping and processing
CoGrader: Same-day results, every time

This speed means you can administer benchmarks more frequently (monthly instead of quarterly) and intervene before students fall too far behind. Districts report using the time savings to run 2-3x more formative assessments per year.

What data and analytics does the assessment platform provide?

CoGrader's assessment platform delivers comprehensive analytics at every level—from individual student feedback to district-wide trends:

Student-Level:
- Rubric-aligned scores for each criterion
- Specific, actionable feedback on strengths and areas for improvement
- Writing skill progression across multiple assessments
- Comparison to grade-level and state standards

Class/Teacher-Level:
- Class performance by rubric category (organization, evidence, language, etc.)
- Identification of which standards need reteaching
- Student grouping recommendations for differentiation
- Score distribution

School/District-Level:
- Performance comparisons across schools, grades, and subgroups
- Predictive analytics for state test performance

Reporting Features:
- Exportable reports in PDF, Excel, and CSV formats
- Real-time updates as scores are reviewed

All data is FERPA-compliant and stored securely with role-based access controls. Districts maintain complete ownership of their assessment data and can export it at any time.

How does CoGrader protect student privacy?

Privacy is our top priority at CoGrader. We maintain strict data protection standards, including SOC2 Type 1 Compliance, FERPA compliance and adherence to the NIST 1.1 framework. Our system uses OAuth2 authentication through Google's protected systems and collects minimal data, using only anonymized student identifiers to match assignments. We store only anonymized names and submissions, with all content securely stored and encrypted.

For detailed information about our data handling and security practices, please review these documents:

- Privacy Policy
- Terms of Use
- AI Transparency Note
- Third-Party Cybersecurity Assessment

How reliable are CoGrader's grade suggestions?

CoGrader's grade suggestions offer strong reliability, lower than the usual variance between human graders. While the AI system uses advanced algorithms and extensive testing to ensure consistent grading, it's designed to assist rather than replace teacher judgment.

Educators maintain control by reviewing and adjusting both grades and feedback before finalizing them, combining AI efficiency with human expertise.

Can CoGrader grade assessments in multiple languages?

Yes, CoGrader can assess and provide feedback on assignments in any language, while the platform interface remains in English. The system can evaluate student work and generate detailed feedback in the same language as the submitted assignment, supporting multilingual education environments.

Can you sign our data privacy agreement?

Yes, we would be happy to. Since we receive many such requests, we prioritize institutions interested in purchasing CoGrader licenses. For any privacy-related questions or to submit your agreement, please contact privacy@cograder.com.