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ThesisHuman Model Release Notes

Official benchmark matrices, architectural updates, and version changelog for ThesisHuman proprietary models.

Flagship Model

Ghosty V5.2

High-Throughput Model

Ghosty Lite V4.9

Target Platforms

Turnitin, GPTZero, CopyLeaks, Winston

Current Model Comparison

Updated August 2026
CapabilityGhosty Lite V4.9Ghosty V5.2
Execution pathDirect Phase 2Phase 1 + Phase 2
Rewrite depthLighter, minimal modificationMost comprehensive rewrite
Protected valuesAtomic ZXQ validationExact-atom check + atomic ZXQ validation
Best forSpeed and wording preservationHighest humanization quality
Recommended defaultNoYes

Detector scores vary by tool, version, and source text. ThesisHuman does not guarantee a particular detector outcome.


Release History & Changelog

Ghosty V5.2

Flagship ProductionAugust 24, 2026

Our most comprehensive academic rewrite, combining a validated natural-text preprocessing stage with the protected fine-tuned rewrite.

  • Natural-text Phase 1 with exact-atom and 85%-115% length validation
  • Generic atomic ZXQ protection applied once before Phase 2
  • Request-level Humanize and Rehumanize history with sanitized process metrics
Phase 1 AttemptsUp to 3
Phase 1 Timeout12s each
Final Length QA65%-135%
Generation Budget80s

Ghosty Lite V4.9

Direct High-ThroughputAugust 24, 2026

High-velocity academic humanizer engineered for rapid iterative drafting, concise abstracts, and fast paragraph transformations.

  • High-speed generation throughput with 2.5x faster velocity
  • Optimized for quick drafting, concise abstracts, and methodology sections
  • Strict deterministic formatting and citation preservation
Generation Throughput2.5x Faster
Phase 1 CallsNone

Ghosty V5.1

Major ReleaseAugust 17, 2026

Advanced cross-sentence semantic restructuring and natural cadence variation with zero-hallucination citation locking.

  • Erased Claude underlying watermarks and stylistic fingerprints
  • Advanced cross-sentence semantic restructuring and natural cadence variation
  • Dynamic lexical entropy calibration preserving formal academic tone
Turnitin Bypass Reliability91.2%
GPTZero Human Score89.7%
CopyLeaks Paraphrase Clearance87.9%

Ghosty V5.0

Major ReleaseAugust 1, 2026

Introduced document-level contextual synthesis, enabling the model to analyze the full narrative flow of a manuscript rather than isolated fragments.

  • Full document-level contextual awareness eliminating boundary artifacts
  • Up to 88.4% human-score reliability on Originality.ai Standard
  • Enhanced passive-to-active voice modulation according to IMRAD conventions
  • Substantially lowered over-editing on already-humanized introductory sentences
Originality.ai Clearance88.4%
Structural Coherence96.5%

Ghosty V4.8

Citation & Fact FidelityJuly 1, 2026

Focused on semantic drift minimization, citation formatting integrity, and scholarly precision in literature reviews.

  • Reduced semantic drift by 14% on empirical claim assertions
  • Comprehensive parser support for Chicago (Author-Date & Notes-Bib) and IEEE citation styles
  • Preservation of numerical findings, p-values, and statistical confidence intervals
Claim Retention Rate98.9%
Citation Formatting Accuracy99.8%

Ghosty V4.6

Burstiness TuningJune 1, 2026

Calibrated sentence-length entropy (burstiness) specifically for APA 7th edition research designs and methodology sections.

  • Perplexity smoothing on formal academic methodologies and empirical protocols
  • Mitigated repetitive transition clichés ('Furthermore', 'Moreover', 'In conclusion')
  • Enhanced vocabulary density calibration for peer-reviewed journal criteria

Ghosty V4.5

Foundational RolloutMay 15, 2026

The initial architecture release establishing the proprietary Ghosty academic transformation paradigm.

  • Dynamic burstiness balancing across IMRAD manuscript structures
  • Unified perplexity smoothing eliminating robotic machine rhythms
  • Foundational support for APA and MLA in-text citation masking

Refine Academic Prose

Switch between Ghosty V5.2 and Ghosty Lite V4.9 anytime in the ThesisHuman editor.