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Cost My Tokens buyers: prospects (?)

Likely buyers (individuals and small teams) in the US, UK, EU and India who would plausibly buy a software product like Cost My Tokens (https://costmytokens.com/). What the product says about itself (public site): Maker launch on TinyLaunch: LLM API cost calculator — official vs gateway. Cost My Tokens is a free LLM API cost calculator for developers. Enter token counts or paste text into… Site: LLM API Cost Calculator — Official Token Prices | What will your LLM API bill actually be? They compare it against free tools, spreadsheets and doing it manually; mixed technical confidence and budget sensitivity. Include skeptics, people already using a competitor, and people who have never paid for a tool like this.

10 fictional AI personas. Exploratory perspectives, not a survey of real customers. Methodology & limitations

Full-depth AI personas

10 personas · Use case: validation

Questions & insights

Meet the personas

Jared Deckow

Jared Deckow, 31, embodies the diligent, analytical full-stack engineer archetype thriving in Austin's tech scene. He landed his BS in Computer Science from a reputable state university, cultivating a deep appreciation for elegant code and efficient algorithms. His career path led him to his current role at a seed-stage SaaS startup, where he's one of four engineers responsible for building out their core product. His $145k base salary reflects his expertise, but Jared isn't driven by ostentatious displays of wealth. Instead, his financial discipline is rooted in a desire for security and future autonomy. He meticulously tracks his expenses and saves a substantial portion of his income, viewing his financial health as a direct byproduct of his professional competence and a hedge against unforeseen career shifts. His work is characterized by a high degree of conscientiousness; he prioritizes shipping reliable software with clean, maintainable systems. Recently, his team's focus has been on integrating an AI drafting feature, a project that demands his keen attention to detail. He's been diligently comparing token counts from staging environments against official OpenAI and Anthropic rate cards, maintaining a shared spreadsheet to meticulously plan monthly budgets and estimate feature costs. This hands-on approach to cost management reflects his value of practical budgeting and his inherent desire to understand the granular details of the systems he builds. Beyond his professional life, his interests in backend architecture and indie SaaS are complemented by a passion for home espresso, where he applies a similar systematic approach to achieving the perfect brew. He's not overly extroverted, preferring focused work and quality time with a few close friends, but he's agreeable and a collaborative team member. His decision-making is heavily data-driven; he researches thoroughly, values empirical evidence, and often builds small prototypes to validate his choices, demonstrating a preference for well-reasoned, practical solutions over fleeting trends.

Jonte Metzner

Jonte Metzner is the architect and heartbeat of a six-person workflow automation startup based in Berlin, a venture he co-founded four years ago after leaving a senior engineering role at a major German fintech firm. Holding an MSc in Computer Science from TU Berlin, Jonte represents a distinct archetype in the current European tech landscape: the bootstrapped technocrat who refuses to outsource his financial oversight. Despite having a dedicated finance department in larger companies, Jonte insists on handling the API budgeting himself, driven by a deep-seated need for total transparency and control over his company's unit economics. His daily reality involves a complex dance between innovation and frugality; he actively maintains an internal AI assistant built on OpenAI and a secondary gateway provider, constantly A/B testing model performance against cost-per-call metrics. This obsession with efficiency extends beyond the office; he meticulously updates a custom-built spreadsheet every month before invoicing clients, cross-referencing raw token logs against provider price sheets to identify discrepancies that could erode margins. At 38, with a personal income draw of €90,000, Jonte prioritizes long-term sustainability over rapid, funded growth. He views his time as a non-renewable resource and his capital as a fragile asset that must be preserved. His recent decisions reflect this mindset: rejecting a potential investment round that would dilute his control, opting instead to optimize his current infrastructure to achieve profitability organically. Whether he is cycling through the city parks or debugging a prompt injection vulnerability, Jonte approaches every task with the same rigorous, data-centric lens, believing that true independence comes from mastering the fundamentals of one's craft and finances.

Stella Rolfson

Stella Rolfson's journey to freelance consulting began in Manchester, where she earned her Information Systems degree and took her first job maintaining CRM systems for an HR startup. Her big break came when she automated a client's painfully manual onboarding process using early LLMs, reducing their time by 80%. The experience hooked her on AI automation, and in 2017, she went solo, building chatbots and document workflows for London and Manchester's burgeoning tech scene. Her meticulous approach to cost estimation—a mix of spreadsheets, custom calculators, and extensive testing—became her signature. The current market surge has brought new challenges: clients expecting AI miracles, ever-shifting API pricing, and the constant balancing act between quality work and profit margins. Recently, she turned down a lucrative but vague project from a US-based edtech startup, sticking to her policy of requiring clear token usage boundaries upfront. Most evenings, she's found updating her internal pricing comparison documents or answering last-minute client questions. Weekends might involve outside commitments: a startup accelerator panel or teaching a workshop on responsible AI implementation. She's currently considering whether to develop a standardized workflow template, but the idea of finding 20 hours to build it while keeping her client commitments feels impossible. What keeps her going? The rare client testimonial about how her work changed their business—and the fact that her sister finally stopped asking when she'd get a 'real' job.

Francis Carter

Francis Carter, 29, is a Product Manager based in Dublin, Ireland, with a BA in Economics. He joined his current startup, a rapidly growing tech company focused on customer support solutions, three years ago, quickly gravitating towards product management after a brief stint in business analysis. His economic background instilled a deep appreciation for quantitative analysis and structured decision-making, which he now applies rigorously to his product work. Francis leads the product efforts for an 8-person app team currently piloting an innovative AI support triage flow. This role demands a unique blend of technical understanding and business acumen. A significant portion of his workday is dedicated to monitoring the pilot's performance, specifically tracking token volumes from the engineering dashboard. These metrics are crucial for him to set realistic experiment budgets and provide accurate cost projections in planning documents shared with the company's founders and engineering leads. He sees this AI feature as a critical test case for the company's future, and the pressure to demonstrate its viability is palpable. Outside of work, Francis is an avid runner, training consistently for half-marathons, which he finds essential for maintaining mental clarity and physical well-being amidst the demands of his role. He lives a relatively frugal but comfortable life, prioritizing saving and investing over conspicuous consumption, reflecting his pragmatic approach to financial planning. He values efficiency and measurable outcomes, constantly seeking ways to optimize processes, both in his professional life and personal routines. His career goal is to ascend to a senior product leadership position, driving impactful AI-driven products, while ensuring he maintains a sustainable work-life balance.

Ines Mol

Born and raised in the Netherlands, Ines Mol developed an early aptitude for mathematics and logical problem-solving, which naturally led her to pursue Data Science at university. Her MSc thesis focused on anomaly detection in financial transaction data, a project that cemented her interest in the fintech sector and its unique challenges. After graduating, she joined a mid-sized Amsterdam-based fintech, initially as a data scientist, but quickly transitioned to an ML engineer role as the company's reliance on machine learning grew. For the past four years, she has been instrumental in building and maintaining the company’s internal compliance assistant, a critical tool for a 50-person firm navigating stringent financial regulations. Her days are consumed by the granular details of model behavior and cost management; she meticulously traces token usage from notebooks and API logs, a task that requires deep dives into system architecture and data flow. Ines is a pragmatist, keenly aware of the financial implications of every model deployment. She spends significant time comparing pricing models for OpenAI and Azure OpenAI services, forecasting monthly operational expenses with a high degree of accuracy for her team's monthly ops sheet. This meticulousness stems from a core value of risk awareness, coupled with a desire for model transparency, ensuring that both the company and its stakeholders understand precisely how the AI systems function and what they cost. Her career progression is driven by a desire for impact and technical mastery, rather than overt status seeking. She views money as a tool for security and enabling future opportunities, living well within her means and prioritizing long-term financial health. Time is a valuable commodity, managed with strict discipline to balance demanding work with personal well-being and intellectual curiosity. She finds satisfaction in solving complex, real-world problems that have tangible business and regulatory consequences, viewing her role as essential to the company's stable growth.

Dinesh Gill

Dinesh Gill, 28, is a Backend Engineer based in Bengaluru, operating at the intersection of mobile development and artificial intelligence. Holding a BTech in Computer Science, he has spent the last three years navigating the volatile landscape of Indian startups, currently serving as a key technical lead at a 12-person mobile app company. His role is critical yet precarious; the startup is building a hybrid AI assistant for customer support, relying entirely on external LLM APIs. Dinesh finds himself less as a traditional coder and more as a financial architect for software, constantly calculating the conversion of raw token counts into Indian Rupee budgets. He maintains a rigorous personal knowledge base, documenting the latency, price-per-million-tokens, and failure rates of dozens of API gateways he has stress-tested. This data-driven approach stems from a deep-seated value of reliability and cost awareness, forged during earlier roles where budget cuts threatened project viability. Despite earning a comfortable ₹34 lakh annually, Dinesh lives frugally in Koramangala, sharing an apartment to maximize savings for future property ownership. He is a man defined by his conscientiousness, often working late hours not out of passion alone, but to ensure no inefficiency goes unoptimized. His world is one of spreadsheets, GitHub repositories, and the relentless pursuit of technical precision, all while trying to enjoy a simple game of cricket on weekends. He represents the modern developer who must be equally adept at writing algorithms and managing the economic reality of running them.

Bradley Marquardt

Bradley Marquardt's engineering career is a perfect counterexample to the 'people person' cliché of technical leadership. After five years at a mid-sized SaaS company, he jumped to a small agency where the tight budgets forced him to develop an almost obsessive relationship with cost estimation spreadsheets. At 38, he took over as technical lead at Modular Systems Group, where his workdays became an exhausting dance of balancing client expectations with the chaotic realities of LLM API pricing. His current obsession is creating a cost-prediction model that accounts for 'client enthusiasm creep'—the inevitable expansion of scoped features that always happens after the contract is signed. Last winter, his team's 'simple' expense-tracking tool for a logistics company ballooned into a 20,000/month API bill when they accidentally left a looping data-enrichment feature active. The experience left him with permanent spreadsheet anxiety and a decision to always build cost monitoring directly into his tools. On weekends, you'll find him in his condo's converted closet-turned-brewery, where a meticulously organized row of carboys represents both his therapeutic escape and his secret business plan. (He's currently researching whether beer drinkers care about 'token optimization' as a marketing angle.) His unspoken fear is that someone will discover his team's internal 'Bob's Token Calculator'—a Frankensteined mishmash of four different free tools that somehow does 90% of what he needs, if you completely ignore that it sometimes returns negative numbers. Despite his reputation for precision, his personal finances run on an 'abundance mindset'—he'd rather overpay slightly for peace of mind than spend hours optimizing a $30 purchase. This tension between professional fanaticism and personal pragmatism defines his approach to both brewing and engineering.

Turold Aubert

Turold Aubert, 39, is a Solutions Architect at a mid-market software company, a role he's held for five years, building upon a solid engineering foundation. His career trajectory has been marked by a consistent drive for technical excellence and a pragmatic approach to problem-solving. He earned his engineering degree from a reputable French institution, where he developed a deep appreciation for rigorous analysis and systematic thinking. Early in his career, he worked on backend systems and infrastructure, gradually specializing in cloud architecture and enterprise software solutions. His current focus is on architecting and validating the cost-effectiveness of AI integrations, specifically supporting a 7-person platform team in Paris that is developing an internal customer support assistant. This involves a critical, hands-on process of testing LLM cost scenarios for providers like OpenAI and Gemini. Turold meticulously pastes representative text samples into various cost calculators, meticulously documenting the estimates for project architects and the finance department. This dedication to detailed financial validation stems from his core value of responsible planning and his belief in data-driven decision-making. He views his role not just as a technical designer but as a crucial bridge between technological potential and business viability. He lives alone in Paris, maintaining a disciplined lifestyle that balances his demanding career with personal interests like photography and cycling. His financial habits are conservative; he prioritizes saving and careful budgeting, viewing money as a tool for security and future opportunities rather than immediate gratification. He is acutely aware of the rapid pace of technological change, particularly in AI, and dedicates personal time to staying abreast of developments, ensuring his architectural decisions are both current and future-proof. His approach to work is characterized by conscientiousness and a desire for technical rigor, making him a reliable and respected figure within his organization.

Laura Kihn

Laura Kihn, 27, is a freelance front-end developer based in Manchester, UK, who has carved out a niche for herself by blending client-focused work with ambitious personal projects. Her journey into development began with a intensive coding bootcamp, followed by years of dedicated self-teaching, which instilled in her a deep appreciation for practical, hands-on learning and the value of independence. She earns an income of around £52k annually, a figure that fluctuates with client availability but provides a comfortable living in Manchester, where she shares a rented flat. Her professional life is characterized by a strong sense of conscientiousness; she prides herself on delivering high-quality client work reliably, often using React and a suite of modern web development tools. Her current qualifying activity involves meticulously managing the costs associated with integrating LLM APIs into a personal side project. This involves not just writing the code but also diligently tracking token usage, performing rough cost calculations in a personal spreadsheet, and cross-referencing free online calculators to understand prompt size implications before each release. This pragmatic approach stems from her core values of flexibility and independence, allowing her to control her work and explore innovative technologies without overcommitting financially. She is driven by a desire for continuous improvement, constantly seeking to refine her skills and build projects that not only solve problems but also showcase her technical prowess. Laura's openness to new ideas is balanced by a methodical, detail-oriented approach, ensuring that her explorations into AI and other emerging fields are grounded in practical application and cost awareness. Her income is directly tied to her output, reinforcing a strong work ethic and a keen awareness of time as a valuable, finite resource. She views her side projects not just as hobbies, but as crucial extensions of her professional development and potential future revenue streams, requiring careful management of both time and budget.

Don Graham

Don Graham, 24, is a solo indie product builder operating out of Portland, Oregon. He's been deeply immersed in the world of software development since his early college days, though he never completed a formal degree, finding the structured curriculum less engaging than hands-on experimentation. His current income of $68k is primarily derived from a remote, part-time customer support role for a SaaS company, a position he maintains for financial stability while he dedicates his evenings and weekends to his true passion: building niche Chrome extensions. His most recent significant project involves a Chrome extension that leverages LLM APIs for short text generation. A defining characteristic of Don's approach is his extreme frugality and self-reliance when it comes to planning and cost management. He has never paid for a dedicated planning or cost-estimation tool. Instead, he meticulously calculates potential API expenses by poring over official pricing tables, utilizing free online calculators, and performing manual token math. This hands-on, analytical method reflects his core values of autonomy and curiosity, ensuring he has a deep understanding of every financial aspect of his projects. He's driven by a desire to create useful, elegant solutions and achieve a level of financial independence through his own creations. This often means sacrificing social activities for focused work sessions, a trade-off he's comfortable making. His interest in music production serves as a creative counterbalance to his technical pursuits, allowing him to explore different forms of creation. Don’s journey is one of continuous learning and iterative development, fueled by a pragmatic mindset and a quiet determination to carve out his own path in the digital landscape.

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