Unlimited AI Tokens: Which Plans Actually Offer Them?
No provider sells literally unlimited AI tokens: every plan marketed as unlimited meters something. Claude and ChatGPT plans use 5-hour session windows plus weekly caps; GitHub Copilot meters AI credits; OpenCode Go and NanoGPT cap by usage windows; Featherless's flat Chat plan leaves tokens unmetered but excludes coding agents and the API; Standard Compute gives a fixed monthly compute budget with no per-request windows. Flat monthly API subscriptions do exist, though: Standard Compute is an OpenAI- and Anthropic-compatible API from $19/month whose fixed compute budget stops requests rather than billing overage, for coding agents like OpenCode, Cline and Claude Code. The honest question is never 'is it unlimited' but 'which limit fits how I work'.
What 'unlimited' actually means, plan by plan
| Plan | Price | The real limit |
|---|---|---|
| Claude Pro / Max | $20 / $100 / $200 per mo | 5-hour session windows + a weekly cap across all models; chat and Claude Code share one pool |
| ChatGPT (Codex) | $8 / $20 / $100–500 per mo | Plus: 5-hour window + weekly limit. Pro: no 5-hour limit, still capped. Credits for overage |
| GitHub Copilot | $10 / $39 / $100 per mo | AI credits (1 credit = $0.01) meter chat, agent mode and CLI; completions stay unlimited |
| Featherless | $25 Chat / from $50 Developer per mo | Chat: unmetered tokens for chat you type (4 concurrent units, 32K context), no coding agents or API. Developer: billed per token. Open-weight models only |
| OpenCode Go | $10/mo (Go Plus $40) | A monthly dollar limit per model, with 20% of it per 5 hours and 50% per week; mostly open-weight models |
| NanoGPT | $12/mo | Usage limits added Feb 2026; open-model catalog |
| Standard Compute | $19–$249+/mo | Fixed monthly compute budget, visible live, with no session or weekly windows; full speed until the budget is used, then requests stop |
Why nobody can sell truly unlimited tokens
Inference costs the provider real money per token, and one runaway agent loop can consume more compute than a thousand normal users. So every flat plan either windows you (5-hour and weekly caps), meters you in disguise (credits), limits your parallelism (concurrency caps), or gives you a defined budget. Plans that promised more have repeatedly repriced or added caps mid-2026: Copilot switched to credits June 1, NanoGPT added limits in February, Chutes rewrote its quota semantics.
The practical difference between the models is failure mode. Windows fail suddenly: your agent stops mid-task until the window resets. Budgets fail predictably: you can see the remaining budget and pace it. Concurrency caps never stop you, but they slow parallel work permanently.
Choosing by workload
- Interactive chat + occasional coding: session-window plans (Claude Pro, ChatGPT Plus) are the best value at $20.
- Open-weight models, maximum tokens per dollar: OpenCode Go or NanoGPT, or Featherless's flat Chat plan for chat you type yourself.
- Agents that run long or unattended: a monthly-budget plan. Windows and agent loops are a miserable combination, because the loop eats the window and then everything stops.
Unlimited LLM API: how a flat monthly budget works for agents
The catch
Marketing has converged on 'unlimited' meaning 'we will not bill you extra', not 'we will not stop you'. Read the limit mechanics before buying: 'unlimited tokens' with a weekly cap is a weekly token allowance with better branding.
Where Standard Compute fits
Standard Compute's version of the truth: a fixed monthly compute budget at a flat price from $19/mo, visible live in the dashboard, no 5-hour or weekly windows. Requests run at full speed until the budget is used, then stop until renewal or an upgrade. It is not infinite. It is honest about being a budget, which is the thing every 'unlimited' plan actually is.
FAQ
Is there any truly unlimited LLM API?
No. Every flat plan on the market limits sessions, weeks, credits, concurrency, or budget. Featherless's token-unmetered Chat plan limits concurrency, serves open-weight models only and excludes API use; its API plan is billed per token.
What is the cheapest way to get near-unlimited tokens?
For open-weight models: OpenCode Go at $10/mo or NanoGPT at $12/mo. For frontier-class quality: flat-rate smart routing from $19/mo, which stretches a fixed budget by matching each request to the cheapest model that handles it well.
Why did my 'unlimited' plan stop working mid-task?
You hit a hidden window, most commonly a 5-hour session cap or a weekly cap. This is the #1 complaint pattern across Claude, Codex and Copilot plans in 2026. If your work is agentic, prefer plans whose limit is a visible budget rather than a clock.