Rivya AI Calculator and Solver: how to use them
Choose AI Calculator or AI Solver, write a clear problem, check the answer, and understand sign-in, chat credits, saved sessions and coming-soon tools.
Last reviewed on September 8, 2026
Rivya currently offers two task-focused chat tools: AI Calculator and AI Solver. Both use a configured chat model with instructions for the task. You get a starting prompt and a structured way to ask; the answer still needs checking.
Choose Calculator, Solver or ordinary chat
| Your task | Start here | What the instructions ask for |
|---|---|---|
| Percentages, conversions, formulas or a numerical scenario | AI Calculator | The numeric answer first, followed by the formula, substituted values, units and assumptions. |
| An equation, reasoning problem or explanation of a method | AI Solver | The answer or conclusion, then the key steps and relevant assumptions. |
| An open-ended brief, brainstorming or a conversation whose direction may change | Chat | Write the scope and response format you need yourself. |
Calculator and Solver overlap: either may explain a calculation. Choose the framing that fits your question. Neither is a guarantee of exact arithmetic, a separate symbolic math engine or a media generator. See when to use tools for more selection examples.
Open a tool and submit a complete problem
Open its public detail page, read the use cases and examples, and go to the input area.
Write the problem or edit a starter prompt. Include all values, units, constraints and the form of answer you want.
Check the model and available controls shown in the form. Tool pages start with a configured model; they do not expose the ordinary model picker.
Sign in when prompted. Review the current credit information, send once and wait for the reply.
Browsing the page or filling a prompt does not run a calculation. Public access does not mean anonymous execution: sending requires an account. After signing in, recheck your draft before sending. See sign-in help and public and signed-in workflows.
Text is the starting input. An image attachment is only an option when the current model and form support it; do not assume photo, PDF, spreadsheet or audio upload is available because the tool can discuss their contents. Paste a clear transcription when necessary, checking signs, exponents and units. Use Chat Studio for chat controls.
Try a calculation you can verify
For AI Calculator, a complete request could be:
A box contains 24 bottles, each holding 750 mL. What is the total volume in liters? Show the formula and units.
The independently checkable arithmetic is 24 × 750 = 18,000 mL, then 18,000 ÷ 1,000 = 18 L. Check both the multiplication and conversion; an answer with the right number but the wrong unit is not correct.
For AI Solver, try:
Solve 3x + 5 = 20. Explain each step and substitute the result into the original equation.
Subtracting 5 gives 3x = 15, so x = 5. Substitution gives 3 × 5 + 5 = 20. These are worked reference examples, not recorded Rivya model runs or accuracy measurements. Read the Calculator guide and math Solver guide for their respective workflows.
Check the answer before using it
Compare the response with the original question. Check copied numbers, operation order, units, rounding and any assumptions. Ask for a missing assumption to be made explicit; do not treat a fluent explanation as evidence that every step is valid.
Both tools are instructed to ask when information is missing, but they may still infer something incorrectly. Correct the premise in a follow-up and verify the revised result independently. A response arriving successfully does not establish mathematical correctness. For real decisions, use verified source values rather than estimates the model supplied without evidence.
Understand credits and resume the right session
Tools use the same account balance and chat billing as other Rivya conversations. There is no separate free or unlimited tool allowance. Each submitted turn, including a follow-up, can use credits; the cost can depend on the model, tokens and conversation context. The displayed starting estimate is not a fixed price for any problem. See Credits & Billing.
To continue existing work, use the matching conversation in History and wait for its messages to load. Merely opening a tool's page again does not restore the conversation you intended. The signed-in tool paths are /studio/tools/chat-research/ai-calculator and /studio/tools/chat-research/ai-solver; the correct saved-session link carries the conversation context.
Copy important answers and keep your problem statement. Unsent drafts and incomplete replies are not a dependable backup; see Saved Sessions. If a request fails or its outcome is unclear, inspect the session and credit record before sending again. A wrong answer is not by itself a failed request or an automatic refund; use Troubleshooting for the next checks.
Read tool availability correctly
The tools catalog also shows planned categories and entries. “Coming soon” means they are not tools you can run now; it is not a promised launch date, and buying credits does not enable them.
Use each live tool's detail page for its introduction, examples and FAQ, and this guide for the shared operation and billing rules. If a tool's current model cannot run, the public page alone is not proof of access. Check Model Availability before planning work around it.