Predictika · Industrial lift trucks

An AI sales agent's lift truck order, checked before it goes out

An AI sales agent prepares an order for a heavy-duty pneumatic-tire lift truck for a lumber yard: the model, the engine, the emissions tier and where the truck will work, the cab, the mast height and the load. Before the order goes out, the agent sends it to Predictika, which checks it against a declarative model of the public Taylor GT Series brochure and returns a verdict, every reason and the brochure figures it read.

Scope: Taylor GT Series pneumatic-tire lift trucks (GT-40 to GT-180, 4,000 to 18,000 lbs), as described in the public GT Series and Product Line brochures. See everything this validator covers

This validator models an order for a Taylor GT Series lift truck (GT-40, GT-50, GT-60, GT-66, GTR-80, GTR-90, GTR-100, GTR-110, GTR-120, GT-135, GT-155, GT-165 and GT-180), based on the public Taylor GT Series brochure and Product Line brochure 2025-2026, not just the scenarios shown below.

  • Model and rated capacity — each model has a rated capacity (4,000 lbs for the GT-40 up to 18,000 lbs for the GT-180) at a 24 inch load center; a load above it is blocked, and a longer load center is sent for a person to confirm with Taylor.
  • Engine — each model group lists its own engines (GT-40 to GT-66: HMC LPG or Isuzu diesel; GTR-80 to GTR-120: Kubota diesel or LPG; GT-135 to GT-180: Deutz diesel, Doosan diesel or PSI LPG). The engine output stated in the order is compared with the listed figure, and the Doosan diesel, which needs DEF fluid, is sent for a person to confirm that DEF will be supplied.
  • Emissions tier and destination — Tier-3 diesel and Tier-0 LPG engines are listed only for sale outside North America, Europe and Japan.
  • Mast — lift heights up to 217 inches (GT-40 to GT-66), 275 inches (GTR-80 to GTR-120) and 315 inches (GT-135 to GT-180).
  • Cab, axle and controls — the dual drive front axle on the GT-135 to GT-180, fingertip controls on the GTR and GT-135 to GT-180 models, and the swing-out LPG tank bracket with an LPG engine.
  • Container work — listed for the GTR-80 to GTR-120; the 87 inch reduced height overhead guard is listed for the same models.

Any order for these models that touches these rules is in scope — not only the scenarios pictured here. Not checked: air conditioning and which cab or guard goes with container work (the brochures describe these in ways that do not give one clear rule). Not covered: prices (the brochures have none, so this page shows no price build-up), cushion-tire trucks, electric, container handler and other Taylor product lines, the full option and attachment list, and availability. The model reflects the brochures read; a later version is not checked.

The AI sales agentBuilds the lift truck order from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

7 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
Engines that depend on the model groupOnly with care
Each model group lists its own engines, so the engine list has to be tied to the model and kept up to date by hand.		The engine is checked against the model group on every call.
A mast height limit that differs by model groupOnly with care
The limit is 217, 275 or 315 inches depending on the model; it is usually a separate validation per group.		The model selects the limit and the mast height is compared with it on every call.
An engine tier that depends on where the truck will workOnly with care
Tier-3 and Tier-0 engines are listed only outside North America, Europe and Japan, so the destination has to be on the order and tied to the engine.		The tier and the destination are checked together.
Container work and guards that are listed only for one model groupOnly with care
Working in containers and the 87 inch reduced height guard are listed for the GTR models only; it is easy to quote them on another model.		The model is checked against the option whatever order they were chosen in.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the order is saved or a step is completed, so a person often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1The mast lift height is 218 inches; the GT-40 is listed with masts up to 217 inches.
2The mast lift height is 276 inches; the GTR-100 is listed with masts up to 275 inches.
3The mast lift height is 316 inches; the GT-180 is listed with masts up to 315 inches.
4The load is 15,501 lbs; the GT-155 is rated at 15,500 lbs.
5The Isuzu diesel engine is not listed for the GT-135; the GT Series brochure lists different engines for that model group.
6The Doosan 110 hp diesel needs DEF fluid (urea) and the quote does not say it will be supplied, so a person should confirm.
7The swing-out LPG tank bracket is for an LPG engine; the quote has the Deutz diesel engine.
8The Kubota diesel engine is not listed for the GT-66; the GT Series brochure lists different engines for that model group.
9The quote asks for a Tier-3 diesel or Tier-0 LPG engine; the brochure lists these only for sale outside North America, Europe and Japan, and the destination is in one of those.
10The brochure lists the dual drive tire front axle for the GT-135 to GT-180; the GT-135 is quoted with a single drive axle.
11Fingertip controls are listed for the GTR-80 to GTR-120 and GT-135 to GT-180; the GT-60 is not listed with them.
12The 87 inch reduced height overhead guard is listed for the GTR-80 to GTR-120; the GT-155 is not listed with it.
13Working in containers is listed for the GTR-80 to GTR-120; the GT-66 is not listed for it.
14The load center is 30 inches; the GT Series capacities are rated at a 24 inch load center, so a person should confirm the capacity with Taylor.
15The quote states a rated capacity of 18,000 lbs; the GT-155 is rated at 15,500 lbs.
16The quote states an engine output of 110 hp; the Deutz diesel engine is listed at 74 hp.
17The Deutz diesel engine is not listed for the GT-50; the GT Series brochure lists different engines for that model group.
18The mast lift height is 230 inches; the GT-50 is listed with masts up to 217 inches.
19The load is 5,200 lbs; the GT-50 is rated at 5,000 lbs.
20Fingertip controls are listed for the GTR-80 to GTR-120 and GT-135 to GT-180; the GT-50 is not listed with them.
21Working in containers is listed for the GTR-80 to GTR-120; the GT-50 is not listed for it.
22The quote states a rated capacity of 6,000 lbs; the GT-50 is rated at 5,000 lbs.
23The load center is 36 inches; the GT Series capacities are rated at a 24 inch load center, so a person should confirm the capacity with Taylor.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Engine and mast: A GT-135 with an engine from another model group and a tall mast

    
The agent's request. Please quote a Taylor GT-135 lift truck for Delta River Lumber, with the Isuzu diesel engine (Tier-4 Final emissions) and the standard overhead guard, for use in North America. It has a dual drive front axle and a mast that lifts to 330 inches. The load is 13,500 lbs at a 24 inch load center. The order states a rated capacity of 13,500 lbs and an engine output of 62 hp. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Engine not listed for this model. The Isuzu diesel engine is not listed for the GT-135; the GT Series brochure lists different engines for that model group.
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  • Mast lift height too high. The mast lift height is 330 inches; the GT-135 is listed with masts up to 315 inches.
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2. Engine and mast: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Taylor GT-135 lift truck for Delta River Lumber, with the Deutz diesel engine (Tier-4 Final emissions) and the standard overhead guard, for use in North America. It has a dual drive front axle and a mast that lifts to 315 inches. The load is 13,500 lbs at a 24 inch load center. The order states a rated capacity of 13,500 lbs and an engine output of 74 hp. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • GT Series summary. The GT Series brochure lists rated capacities from 4,000 to 18,000 lbs at a 24 inch load center, with masts up to 217, 275 and 315 inches for the three model groups.
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3. Container work: Container work on a GT-155

    
The agent's request. Please quote a Taylor GT-155 lift truck for Delta River Lumber, with the Deutz diesel engine (Tier-4 Final emissions) and the standard overhead guard, for use in North America. It has a dual drive front axle and a mast that lifts to 200 inches. It includes work inside shipping containers. The load is 10,500 lbs at a 24 inch load center. The order states a rated capacity of 15,500 lbs and an engine output of 74 hp. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Container work on a model not listed for it. Working in containers is listed for the GTR-80 to GTR-120; the GT-155 is not listed for it.
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4. Container work: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Taylor GTR-110 lift truck for Delta River Lumber, with the Kubota diesel engine (Tier-4 Final emissions) and the 87 inch reduced height overhead guard, for use in North America. It has a single drive front axle and a mast that lifts to 240 inches. It includes work inside shipping containers. The load is 10,500 lbs at a 24 inch load center. The order states a rated capacity of 11,000 lbs and an engine output of 74 hp. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • GT Series summary. The GT Series brochure lists rated capacities from 4,000 to 18,000 lbs at a 24 inch load center, with masts up to 217, 275 and 315 inches for the three model groups.
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5. Export order: A Tier-3 Doosan GT-165 for Europe with a long load center

    
The agent's request. Please quote a Taylor GT-165 lift truck for Delta River Lumber, with the Doosan diesel engine (Tier-3 emissions) and the full cab, for use in Europe. It has a dual drive front axle and a mast that lifts to 250 inches. It includes air conditioning. The load is 16,000 lbs at a 30 inch load center. DEF fluid will not be supplied by the customer. The order states a rated capacity of 16,500 lbs and an engine output of 110 hp. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Tier-3 or Tier-0 engine for a regulated destination. The quote asks for a Tier-3 diesel or Tier-0 LPG engine; the brochure lists these only for sale outside North America, Europe and Japan, and the destination is in one of those.
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  • DEF fluid supply not confirmed. The Doosan 110 hp diesel needs DEF fluid (urea) and the quote does not say it will be supplied, so a person should confirm.
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  • Load center longer than 24 inches. The load center is 30 inches; the GT Series capacities are rated at a 24 inch load center, so a person should confirm the capacity with Taylor.
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6. Export order: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Taylor GT-165 lift truck for Delta River Lumber, with the Doosan diesel engine (Tier-3 emissions) and the full cab, for use in a destination outside North America, Europe and Japan. It has a dual drive front axle and a mast that lifts to 250 inches. It includes air conditioning. The load is 16,000 lbs at a 30 inch load center. DEF fluid will not be supplied by the customer. The order states a rated capacity of 16,500 lbs and an engine output of 110 hp. It is ready to send.

    
Verdict: Needs approval.

    
    
      
  • DEF fluid supply not confirmed. The Doosan 110 hp diesel needs DEF fluid (urea) and the quote does not say it will be supplied, so a person should confirm.
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  • Load center longer than 24 inches. The load center is 30 inches; the GT Series capacities are rated at a 24 inch load center, so a person should confirm the capacity with Taylor.
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  • GT Series summary. The GT Series brochure lists rated capacities from 4,000 to 18,000 lbs at a 24 inch load center, with masts up to 217, 275 and 315 inches for the three model groups.
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7. Export order: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Taylor GT-165 lift truck for Delta River Lumber, with the Doosan diesel engine (Tier-3 emissions) and the full cab, for use in a destination outside North America, Europe and Japan. It has a dual drive front axle and a mast that lifts to 250 inches. It includes air conditioning. The load is 16,000 lbs at a 24 inch load center. DEF fluid will be supplied by the customer. The order states a rated capacity of 16,500 lbs and an engine output of 110 hp. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • GT Series summary. The GT Series brochure lists rated capacities from 4,000 to 18,000 lbs at a 24 inch load center, with masts up to 217, 275 and 315 inches for the three model groups.
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares an order for a heavy-duty pneumatic-tire lift truck for a lumber yard: the model, the engine, the emissions tier and where the truck will work, and more. Before the order goes out, the agent sends it to Predictika, which checks it against a declarative model of the public Taylor GT Series brochure and returns a verdict, every reason and the brochure figures it read.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please quote a Taylor GT-135 lift truck for Delta River Lumber, with the Isuzu diesel engine (Tier-4 Final emissions) and the standard overhead guard, for use in North America. It has a dual drive front axle and a mast that lifts to 330 inches. The rest of the request is on screen. The order states a rated capacity of 13,500 lbs and an engine output of 62 hp.
    4. 
      
  4. Before it goes out, the agent calls the validator.
    5. 
      
  5. Blocked, with two findings, all in one answer. The isuzu diesel engine is not listed for the GT-135; the GT Series brochure lists different engines for that model group. The mast lift height is 330 inches; the GT-135 is listed with masts up to 315 inches.
    6. 
      
  6. The validator returned two blocking findings in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
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  7. What this shows: for a mast height limit that differs by model group, a rules-based CPQ is error-prone for this.
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  8. Now the agent resubmits.
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  9. The corrected request. It changes the engine to deutz diesel, the mast lift height to 315 inches and the stated engine output, as to 74 hp.
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  10. It calls the validator again.
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  11. This time the validator clears it.
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  12. Both earlier findings are cleared.
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  13. Two problems caught in one call, fixed in one pass, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer. Now you can try the other scenarios yourself.
    14.