The OpenAI bill, before it compounds.
The usage dashboard shows the meter running. StackSpend says where the month lands, flags spikes same-day, and shows OpenAI next to every other provider you pay.
- Read-only access
- 14-day free trial
- No credit card required
- 5 min
- setup, per provider
- 90 days
- available history
- Same-day
- anomaly alerts
Spend vs Budget
Forecast $45,000 this month
See the model mix behind your OpenAI bill.
Every model you run, in one lens.
Usage by base model, project and user, in tokens and in API-equivalent value. Estimated and billed usage stay separate, so the numbers never double-count and never pretend to be your invoice.
Business plan
How it worksOpenAI · token mixIllustrative example
1,000,000 tokens
- gpt-4.1550,000
- gpt-4.1-mini300,000
- gpt-4o-mini150,000
600k input · 250k cached input · 150k output. API value is an estimate, not your invoice.
Switch to a cheaper model that scores as well.
StackSpend checks the models you run against a priced, benchmarked catalogue every day. When a cheaper one scores as well, you get the swap, the evidence, and the monthly saving at your real token mix.
Business plan
How it worksOpenAI · model comparisonIllustrative example
Compare at your token mix.
Check workload quality and benchmark fit before switching. An estimated saving is not a guarantee.
One message each morning. Nobody opens a billing portal.
Team plan and above
How it worksProduct examples are illustrative. Usage estimates and provider-reported costs are separate measures; availability varies by connected source.
Explore the model viewWhy is OpenAI spend hard to control?
- OpenAI costs scale with every API call. A product launch, a prompt change, or a bug can double spend in 24 hours. OpenAI provides usage and cost reporting during the billing period; keeping it alongside other vendors requires a separate workflow.
- Model-level costs are invisible as a total. GPT-4 Turbo, 4o, 4o-mini, embeddings — they are all on the same bill but aggregated. Without breakdown, you cannot tell which workload is driving cost.
- OpenAI supports project-level usage reporting. Aligning those projects with teams and costs from other vendors still requires consistent attribution.
Know what you are connecting.
The coverage
- StackSpend pulls OpenAI usage via the API. Model-level breakdown shows GPT-4, 4o, 4o-mini, embeddings, and all other usage types so you see what is actually driving cost.
- Daily alerts in Slack or email. Anomaly detection fires the day a spike starts — not at month-end. Budget thresholds and pace-to-forecast keep the billing cycle visible.
- 90 days of history backfilled on connect. See cost trends by model from the start.
The source
Organization costs and token usage from OpenAI. The connector makes read requests; review the permissions on your Admin key separately.
OpenAI permission requirementsThe limits
Provider reporting and scheduled sync determine freshness. The initial backfill requests up to 90 days of available data. Alerts notify your team; they do not block requests or enforce a spending cap.
What we track
- OpenAI organizations and projects
- Cost by model (GPT, embeddings, and other usage types)
- Daily usage and billing visibility
- 90 days of history
- Anomaly detection and budget thresholds
- Forecasting
Who should use StackSpend for OpenAI?
- Product and engineering teams that need model-level visibility before AI bills surprise them.
- Buyers consolidating OpenAI, Anthropic, Claude, Cursor, or open-model spend into one operating view.
- Teams that need alerts and forecasting, not just retrospective usage dashboards.
Evaluation checklist
- 01
Start a trial
Open a StackSpend workspace with no credit card required.
- 02
Connect with read-only access
Use the setup guide to connect the provider or workflow with the minimum permissions needed.
- 03
Review the first 90 days
Check history, alerts, anomalies, and forecast so you can decide whether the workflow is worth adopting.
StackSpend alongside OpenAI usage dashboard.
Native tools provide provider-specific reporting and controls. StackSpend adds a shared monitoring workflow across connected sources.
OpenAI usage dashboard
- OpenAI provides usage and cost reporting during the month; other vendors remain outside that view
- OpenAI reporting covers its own models and projects; cross-provider alerts require other data
- OpenAI supports native spend alerts and configurable hard limits; StackSpend adds monitoring across connected providers
- Native project reporting depends on your project setup; cross-vendor team attribution needs consistent labels
StackSpend
- Daily spend signal broken down by model — GPT-4, 4o-mini, embeddings, and more
- Anomaly detection catches token spend spikes the day they happen
- 90 days of history backfilled on connect so trends are visible immediately
- Unified with Anthropic, Cursor, and other AI providers in one view
Provider documentation checked 30 September 2026: OpenAI Usage API · OpenAI spend limits
What do you get when you connect OpenAI?
- Setup time
- Most teams can connect and validate setup in about 5-10 minutes.
- Access model
- Read-only credentials only. StackSpend does not modify provider resources or billing settings.
- Signals
- Daily Slack or email updates, anomaly alerts, and budget tracking in one workflow.
- History and forecast
- Historical spend context plus pace-to-forecast so overruns are visible before month-end.
Check the details before connecting.
Review connection permissions
Read the provider setup guides before sharing credentials.
Provider setup guidesSee the security details
How credentials, tenant isolation and data handling work.
Security and data handlingTalk to the team
Ask about your stack or requirements before connecting.
Contact StackSpendAbout Andrew DayOpenAI cost monitoring, answered
What does StackSpend cover for OpenAI?
- Tracks OpenAI organizations, projects, models, and usage patterns in one monitoring workflow.
- Useful for teams that need more than the native OpenAI usage dashboard and monthly billing view.
- Uses your Organization ID and API key in a read-only monitoring workflow.
- OpenAI cost per request visibility when you need request-level cost breakdown.
What causes OpenAI costs to spike?
- A feature ships using GPT-4 when GPT-4o-mini would serve the use case at a fraction of the cost
- A prompt change increases average token count per request by 40% and nobody notices until the invoice
- Embeddings are generated on every search query instead of being cached, driving silent volume
- A developer experiment runs against the API over a weekend and generates unexpected spend
- A feature shipped on a more expensive model than expected, or a fallback model became the default.
- Prompt or context length grew, increasing average input and output tokens per request.
- Retries, streaming reconnects, batch jobs, or background agents repeated calls silently.
- Embeddings, evals, or summarisation jobs ran per event instead of using cache or sampling.
What is StackSpend for OpenAI?
StackSpend connects to OpenAI organization costs and usage APIs to show reported spend, model-level token usage, project and user attribution where available, and estimated API usage value. It adds daily monitoring, forecasts and anomaly alerts alongside your other connected providers. Alerts notify your team; they do not block API requests.
Does StackSpend replace the OpenAI usage dashboard?
The OpenAI dashboard shows your own organisation usage accurately, and StackSpend reads the same usage and cost APIs read-only. What it adds is the layer the dashboard stops short of: a daily Slack or email signal, anomaly alerts, budget pacing, and one view across OpenAI, Anthropic, Cursor, and the rest of your stack.
How do I catch an OpenAI cost spike before the invoice?
OpenAI cost scales with every API call, and the usage dashboard updates slowly — a launch, a prompt change, or a bug can double spend in 24 hours before anyone notices. StackSpend pulls usage via the API with read-only access, breaks cost down by model (GPT-4, 4o, 4o-mini, embeddings), and fires anomaly alerts in Slack or email the day a spike starts, with pace-to-forecast so the billing cycle stays visible.
Can StackSpend track OpenAI billing by organization and project?
Yes. StackSpend is designed to help teams monitor OpenAI cost across organizations, projects, and models so billing is easier to explain and review.
How is this different from the OpenAI usage dashboard?
The OpenAI usage dashboard is useful for native usage checks, but it still leaves teams manually watching spend. StackSpend adds daily visibility, anomaly alerts, and forecasting around that same billing problem.
Can I track OpenAI token usage by model?
Yes. StackSpend shows OpenAI token usage and cost by model so teams can see which GPT or embedding workloads are driving billing changes.
Can I see OpenAI cost per request?
StackSpend shows cost by model and usage type from the OpenAI API. For request-level OpenAI cost per request breakdown, add your own request metadata (feature, customer) and join it with our cost data in your reporting layer.
How do I see which model or feature is driving my OpenAI cost?
StackSpend breaks your OpenAI bill down by model — GPT-4, 4o, 4o-mini, embeddings — and by project and API key, so the workload driving cost is visible instead of hidden in one org total. Tag spend to a team, product, feature, or customer and the daily view shows exactly which model and which feature moved the number, without waiting for the monthly invoice.
How do I work out my OpenAI cost per customer or feature?
Attribute OpenAI spend by model, project, and key, then tag it to a team, product, feature, or customer to get cost-per-customer, cost-per-feature, and cost-per-request — the unit economics behind your AI COGS. StackSpend ties input and output tokens directly to cost, so margin per feature is a figure you can track daily rather than reconstruct from a monthly bill.
How do I see OpenAI, Anthropic, Cursor, and cloud spend as one AI number?
StackSpend unifies OpenAI with Anthropic, Claude, Cursor, Hugging Face, and Grok, plus cloud providers like AWS, GCP, Azure, Snowflake, and Vercel, into one total. Instead of adding up separate billing pages, you get a single AI-and-cloud spend figure with daily signals, shared budgets, and pace-to-forecast across every connected provider.
Why is my OpenAI bill so high?
The usual causes are a feature running on a pricier model than intended, longer prompts or context increasing tokens per request, silent retries or background agents repeating calls, and embeddings or eval jobs running per event. Break spend down by project, model, and endpoint, and check tokens per request to find the driver.
How do I find what caused an unexpected OpenAI bill?
Compare daily spend by model and endpoint, review request count and tokens per request, and line it up against recent deploys and prompt changes. StackSpend tracks OpenAI usage by project and model and flags the anomaly the day it starts — long before the invoice.
How do I stop OpenAI spend going over budget?
Move from the monthly usage dashboard to daily monitoring: a daily spend signal, anomaly alerts on token/request ratio and model mix, and pace-to-forecast. StackSpend connects with your Organization ID and API key read-only in minutes.
My OpenAI API cost is too high — what should I do first?
Three steps, in order. First, break the last 30 days down by model and project to find where the money actually goes — one model or one workload is usually most of it. Second, check tokens per request over time: if it climbed, a prompt or context change is inflating every call, and trimming context or caching repeated content cuts cost without touching features. Third, review model routing — workloads that don’t need a frontier model can often move to a smaller tier at a fraction of the per-token price (compare on an LLM pricing index). Then put daily monitoring on it so the next increase is a same-day alert instead of next month’s surprise.
Can I lower OpenAI API costs without degrading quality?
Usually, yes — because most overspend is mechanical, not model-quality related: repeated context that could be cached, retries multiplying calls, verbose outputs nobody consumes, and premium models serving tasks a cheaper tier handles. Measure tokens per request and model mix first, fix the mechanics, and only then decide whether any workload truly needs the frontier model it uses.
For the current provider catalogue, see supported integrations.
Tomorrow morning: your OpenAI number, in Slack.
Connect OpenAI today and follow spend, budgets and alerts in one place. Review provider permissions before connecting.