TAG (Trading Card Authenticator & Grader) is the newest entrant in the card grading industry, and it is challenging the established order with AI-powered robotic grading. In 2025, TAG graded 440,000 cards, an 83% increase year-over-year — the second-highest growth rate in the industry behind CGC's 121%. TAG differentiates itself with a 1,000-point composite scoring system that provides unprecedented granularity and eliminates the human subjectivity that introduces variance into traditional grading.
While PSA, CGC, and BGS all rely on human graders who examine cards under magnification, TAG uses machine vision and AI analysis to evaluate centering, corners, edges, and surface. The result is a level of consistency that human graders cannot match — the same card submitted multiple times will receive the same score. This review examines TAG's technology, pricing, turnaround times, slab quality, resale market acceptance, and how it compares to the established grading companies.
Key Takeaways
- TAG uses AI-powered robotic grading instead of human graders, eliminating subjectivity and ensuring identical results on re-submissions.
- TAG's 1,000-point composite score provides far more granularity than PSA's whole-number or BGS's half-point scales.
- TAG graded 440,000 cards in 2025 (+83% YoY), making it the fastest-growing grader after CGC.
- Standard pricing is approximately $18/card with 20-30 business day turnaround — competitive with CGC and faster than PSA and BGS.
- Resale market acceptance is still building — TAG slabs currently trade at a discount to PSA and CGC, but the gap is narrowing.
Table of Contents
What Is TAG Grading?
TAG is a technology-first card grading company that uses AI-powered robotic systems to evaluate trading cards. Unlike PSA (founded 1991), BGS (founded 1999), and CGC (entered cards in 2020), TAG was built from the ground up as a technology company that happens to grade cards, rather than a grading company that adopted technology.
The company's value proposition is simple: human grading is inherently subjective. Two graders looking at the same card can — and do — produce different scores. The same card submitted to the same company at different times can receive different grades. This variance is a structural problem in the grading industry, and it is the problem TAG was built to solve.
In 2025, TAG graded 440,000 cards across all categories, representing 1.7% of the total grading market. While this is a small fraction compared to PSA's 19.26 million, TAG's 83% year-over-year growth rate is the second-highest in the industry, signaling increasing collector interest in technology-assisted grading.
The AI Grading Technology
TAG's grading system uses high-resolution machine vision to capture detailed images of each card from multiple angles and lighting conditions. AI algorithms then analyze the four standard grading criteria — centering, corners, edges, and surface — with a level of precision and consistency that human graders cannot match.
How TAG's AI Grading Works
- Image capture: The card is placed in TAG's automated system, which captures high-resolution images from multiple angles under controlled lighting conditions. This ensures that every card is photographed identically, eliminating the variability that comes from human positioning and lighting setup.
- Centering analysis: The AI measures border widths on all four sides with sub-pixel precision. Unlike human graders who estimate centering ratios visually, TAG's system calculates exact ratios to multiple decimal places.
- Corner inspection: The AI examines all four corners at high magnification, looking for the same flaws a human grader would identify — whitening, fuzziness, rounding, dings — but with consistent magnification and lighting every time.
- Edge evaluation: The system scans all four edges for chipping, whitening, notching, and rough spots. The AI can detect edge defects that might be missed by a human grader examining the card under a desk lamp.
- Surface assessment: The AI analyzes the card's surface under multiple lighting angles to detect scratches, print lines, ink spots, and other defects. The controlled lighting environment ensures that surface defects are consistently identified.
- Score calculation: The four sub-scores are combined into a 1,000-point composite score using TAG's proprietary algorithm. The score maps to a traditional grade but provides far more granularity.
The Consistency Advantage
The primary advantage of AI grading is consistency. Human graders have good days and bad days. They get tired. They disagree with each other. The same card submitted to PSA on a Monday might get a different result than if it were submitted on a Friday. TAG's AI system produces the same result every time, because the algorithm does not get tired, does not have opinions, and does not vary.
This consistency is particularly valuable for collectors who submit multiple copies of the same card. If you pull five Umbreon VMAX Alt Arts from Evolving Skies and want to grade all of them, TAG will produce consistent relative scores — the best card will get the highest score, every time. With human graders, the ranking might vary between submissions.
Human grading variance is a well-known issue in the card grading industry. Collectors routinely report that the same card, cracked from its slab and re-submitted to the same company, receives a different grade on the second submission. TAG's AI system eliminates this variance entirely — the same card will receive the same score every time it is submitted.
The 1,000-Point Scoring System
TAG's 1,000-point composite scoring system is its most distinctive feature. Instead of a simple 1-10 grade, TAG assigns a precise score out of 1,000. This score maps to a traditional grade but provides far more information.
How the Scoring Works
| TAG Score | Equivalent Grade | What It Means |
|---|---|---|
| 950-1000 | Gem Mint 10 | Virtually perfect card, near-flawless in all criteria |
| 900-949 | Mint 9 | One minor flaw, high-end condition |
| 850-899 | Near Mint-Mint 8 | Minor wear visible on close inspection |
| 800-849 | Near Mint 7 | Light wear, small corner or surface issues |
| 750-799 | Excellent-Mint 6 | Moderate wear, visible flaws |
| 700-749 | Excellent 5 | Obvious wear, noticeable edge and corner issues |
| Below 700 | Very Good or worse | Significant damage |
The granularity of the 1,000-point system provides several advantages over traditional grading scales:
- Precise quality differentiation: A TAG score of 973 tells you the card is a high-end 9.5, close to but not quite a 10. A TAG score of 952 tells you the card barely made the 9.5 threshold. With PSA, both cards would simply be "PSA 9" or "PSA 10" — you cannot tell the difference.
- Trend tracking: If you re-submit a card to TAG after it has been stored for a year, you can compare the exact scores to see if condition has changed. With traditional grading, a card that stays at PSA 9 gives you no information about whether it improved or declined within the 9 range.
- Re-submission decisions: A TAG score of 948 (just 2 points away from Gem Mint territory) might justify a re-submission if you believe the AI missed something. A TAG score of 920 (32 points away) tells you re-submission is unlikely to help.
Pricing and Turnaround
TAG's pricing is competitive with CGC and significantly cheaper than PSA for comparable turnaround times.
| Service Level | TAG | PSA | CGC | BGS |
|---|---|---|---|---|
| Standard/Bulk | ~$18 | $24.99 (CC members) | $17 | $14.95 (no subs) |
| Express | N/A | $149.99 | $85 | $79.95 |
| Turnaround (Standard) | 20-30 business days | 60-120+ business days | 25-40 business days | 45-75 business days |
Source: Published tier pricing as of mid-2026. PSA Value Bulk requires Collectors Club membership ($99/year).
TAG's standard turnaround of 20-30 business days is the fastest in the industry, edging out CGC's 25-40 day Bulk tier and significantly faster than PSA's 60-120+ day Economy and BGS's 45-75 day Economy.
Slab Quality and Design
TAG's slab design is modern and clean. The label displays the 1,000-point composite score prominently, along with the equivalent traditional grade for easy comparison. The slab itself is sturdy and well-constructed, with a clear viewing window that shows the card without obstruction.
Collectors have noted that TAG slabs stack well and have a premium feel that rivals BGS and CGC. The label information includes the card name, set, card number, and the composite score broken down by category (centering, corners, edges, surface), providing the same type of sub-grade transparency that BGS offers — but with more precise scoring.
Resale Market Acceptance
This is TAG's biggest challenge. While TAG's technology and scoring system are objectively superior in terms of consistency and granularity, the resale market is driven by buyer recognition and trust. PSA has been the market standard for 30+ years. CGC has built trust through its comic book grading heritage. BGS has the Black Label mystique.
TAG slabs currently trade at a discount to PSA and CGC on the secondary market. A TAG 950+ (equivalent to Gem Mint 10) typically sells for 60-80% of what a PSA 10 of the same card would sell for. This discount reflects the market's uncertainty about a newer grading company, not a quality issue with TAG's grading.
However, the gap is narrowing. TAG's 83% YoY growth means more TAG slabs are entering the market, and more collectors are becoming familiar with the brand. As TAG's population reports grow and more high-profile collectors endorse the technology, resale premiums are expected to increase.
Every new grading company faces the same adoption curve. CGC entered the card market in 2020 and initially traded at a significant discount to PSA. By 2025, CGC Pristine 10s were trading at 70-90% of PSA 10 values. TAG is earlier in this curve, but the same dynamics — growing population reports, increasing collector familiarity, and demonstrated grading quality — should narrow the gap over time.
TAG vs PSA vs CGC vs BGS
| Factor | TAG | PSA | CGC | BGS |
|---|---|---|---|---|
| Technology | AI-powered robotic | Human graders | Human graders | Human graders |
| Scoring | 1,000-point composite | 1-10 (whole only) | 1-10 (half-points) | 1-10 (half-points) |
| Subgrades | 1,000-pt breakdown | Not available | Pristine 10 only | Every slab |
| Consistency | Perfect (AI) | Good (human variance) | Good (human variance) | Good (human variance) |
| Standard Price | ~$18 | $24.99 (CC) | $17 | $14.95 (no subs) |
| Turnaround | 20-30 days | 60-120+ days | 25-40 days | 45-75 days |
| Resale Premium | 60-80% of PSA | Highest (100%) | 70-90% of PSA | Strong for 9.5+/BL |
| 2025 Volume | 440K (+83%) | 19.26M (+26%) | 4.92M (+121%) | 824K (+26%) |
Should You Use TAG?
TAG is the right choice in three specific scenarios:
- You are submitting multiple copies of the same card. TAG's AI consistency ensures that the best card gets the highest score, every time. If you pull five copies of a chase card and want to grade all of them, TAG will produce reliable relative rankings.
- You value sub-grade transparency and granular scoring. TAG's 1,000-point system tells you exactly how close your card is to the next grade threshold. This is more information than PSA provides and more precise than BGS's half-point sub-grades.
- You want fast turnaround at a competitive price. TAG's 20-30 day standard turnaround is the fastest in the industry, and at ~$18/card, the pricing is competitive with CGC.
TAG is not the right choice when:
- You plan to sell immediately and want maximum resale value. PSA 10s still command the highest prices. If resale liquidity is your primary goal, PSA remains the default choice.
- You are grading vintage WOTC cards for the collector market. Vintage buyers conventionally prefer PSA slabs. The PSA population data is deepest for these sets, and PSA labels are the reference point for vintage comps.
- You are chasing a BGS Black Label. The Black Label 10 is unique to BGS. If you believe your card is flawless, BGS is the only play.
Frequently Asked Questions
What is TAG grading?
TAG (Trading Card Authenticator & Grader) is a card grading company that uses AI-powered robotic grading instead of human graders. TAG assigns a 1,000-point composite score to each card, providing more granularity than traditional 1-10 grading scales. TAG graded 440,000 cards in 2025, growing 83% year-over-year.
How does TAG's AI grading work?
TAG uses high-resolution machine vision to capture images of each card from multiple angles under controlled lighting. AI algorithms then analyze centering, corners, edges, and surface with sub-pixel precision. The system produces consistent results — the same card will receive the same score every time it is submitted, eliminating human variance.
How much does TAG grading cost?
TAG's standard pricing is approximately $18 per card with a 20-30 business day turnaround. This is competitive with CGC's $17 Bulk tier and significantly cheaper than PSA's $24.99 Bulk (which requires a $99/year Collectors Club membership) for comparable turnaround times.
How does TAG compare to PSA?
TAG offers more consistent grading (AI vs human), more granular scoring (1,000-point vs 1-10), faster turnaround (20-30 days vs 60-120+), and competitive pricing (~$18 vs $24.99). However, PSA commands higher resale premiums (PSA 10s sell for 25-40% more than TAG equivalents) and has deeper market acceptance. TAG is better for consistency and speed; PSA is better for resale value.
What is TAG's 1,000-point scoring system?
TAG assigns each card a score out of 1,000 points. A score of 950+ is equivalent to Gem Mint 10, 900-949 is Mint 9, 850-899 is NM-MT 8, and so on. The system provides far more granularity than traditional grading — a TAG score of 973 tells you the card is a high-end 9.5, while a TAG score of 952 tells you it barely made the threshold.
Are TAG slabs worth as much as PSA slabs?
Currently, TAG slabs trade at 60-80% of PSA slab values for equivalent grades. This discount reflects the market's earlier stage of adoption, not a quality issue. As TAG's population reports grow and collector familiarity increases, the gap is expected to narrow — similar to how CGC narrowed its discount from 50% to 70-90% over five years.
Should I use TAG or CGC for Pokemon cards?
For modern Pokemon under $500 raw where resale premium is not the primary concern, both TAG and CGC are good options. TAG offers faster turnaround (20-30 vs 25-40 days) and more granular scoring. CGC offers slightly lower bulk pricing ($17 vs ~$18) and better-established resale market acceptance. Choose TAG for consistency and speed; CGC for market recognition.
Can I use TAG for vintage Pokemon cards?
You can, but vintage buyers conventionally prefer PSA slabs. PSA has the deepest population reports for WOTC-era cards and is the reference point for vintage comps. If you plan to sell vintage cards, PSA remains the better choice for maximum resale value. TAG is more suitable for modern cards where the resale discount is less impactful.
Want to compare how your card would grade across TAG, PSA, CGC, and BGS? Try GradePokemon's free AI card grading tool to get instant grade estimates for all four companies before choosing where to submit.