> ## Documentation Index
> Fetch the complete documentation index at: https://tbd-6fc993ce-mintlify-add-deploy-button-docs-27400.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Pricing & Limits

export const PricingCalculator = () => {
  const planPrices = {
    free: 0,
    hobbyist: 30,
    startup: 200
  };
  const usagePrices = 0.0000166667;
  const [plan, setPlan] = useState('free');
  const [headless, setHeadless] = useState(true);
  const [avgSessionLength, setAvgSessionLength] = useState(30);
  const [numSessions, setNumSessions] = useState(100);
  const [flash, setFlash] = useState(false);
  const prevPriceRef = useRef(null);
  let price = planPrices[plan];
  let usageCost = 0;
  if (headless) {
    usageCost += usagePrices * 1 * numSessions * avgSessionLength;
  } else {
    usageCost += usagePrices * 8 * numSessions * avgSessionLength;
  }
  let includedUsageCredits = 5;
  if (plan === 'hobbyist') {
    includedUsageCredits = 10;
  } else if (plan === 'startup') {
    includedUsageCredits = 50;
  }
  if (usageCost > includedUsageCredits) {
    price += Math.max(0, usageCost - includedUsageCredits);
  }
  useEffect(() => {
    const prev = prevPriceRef.current;
    if (prev !== null && (prev.usageCost !== usageCost || prev.includedUsageCredits !== includedUsageCredits || prev.price !== price)) {
      setFlash(true);
      const t = setTimeout(() => setFlash(false), 300);
      return () => clearTimeout(t);
    }
    prevPriceRef.current = {
      usageCost,
      includedUsageCredits,
      price
    };
  }, [usageCost, includedUsageCredits, price]);
  const labelStyle = {
    fontWeight: 600,
    fontSize: '0.875rem',
    minWidth: '10rem',
    flexShrink: 0,
    maxWidth: '10rem'
  };
  const rowStyle = {
    display: 'flex',
    alignItems: 'center',
    gap: '0.5rem',
    minHeight: '2.25rem'
  };
  const inputStyle = {
    minWidth: 0,
    flex: 1,
    maxWidth: '100%',
    boxSizing: 'border-box',
    background: 'transparent'
  };
  const numberInputStyle = {
    borderBottom: '1px solid #7c3aed',
    textAlign: 'right'
  };
  const selectStyle = {
    ...inputStyle,
    appearance: 'none',
    backgroundImage: `url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23374151'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E")`,
    backgroundRepeat: 'no-repeat',
    backgroundPosition: 'right 0.5rem center',
    backgroundSize: '0.75rem',
    paddingRight: '1.5rem'
  };
  return <Columns cols={2}>
            <Card title="Controls" icon="calculator">
                <div style={rowStyle}>
                    <label style={labelStyle}>Plan</label>
                    <select style={selectStyle} value={plan} onChange={e => setPlan(e.target.value)}>
                        <option value="free">Free</option>
                        <option value="hobbyist">Hobbyist</option>
                        <option value="startup">Startup</option>
                    </select>
                </div>
                <div style={rowStyle}>
                    <label style={labelStyle}>Session length (seconds)</label>
                    <input type="number" style={{
    ...inputStyle,
    ...numberInputStyle
  }} value={avgSessionLength} onChange={e => setAvgSessionLength(parseInt(e.target.value))} />
                </div>
                <div style={rowStyle}>
                    <label style={labelStyle}>Number of sessions</label>
                    <input type="number" style={{
    ...inputStyle,
    ...numberInputStyle
  }} value={numSessions} onChange={e => setNumSessions(parseInt(e.target.value))} />
                </div>
                <div style={rowStyle}>
                    <button class="btn btn-primary dark:text-white" style={{
    padding: '0.25rem 0.5rem',
    borderRadius: '0.375rem',
    border: `1px solid ${!headless ? '#7c3aed' : 'var(--btn-border)'}`,
    fontSize: '0.875rem',
    background: !headless ? 'var(--btn-selected-bg)' : undefined
  }} onClick={() => setHeadless(false)}>Headful</button>
                    <button class="btn btn-primary dark:text-white" style={{
    padding: '0.25rem 0.5rem',
    borderRadius: '0.375rem',
    border: `1px solid ${headless ? '#7c3aed' : 'var(--btn-border)'}`,
    fontSize: '0.875rem',
    background: headless ? 'var(--btn-selected-bg)' : undefined
  }} onClick={() => setHeadless(true)}>Headless</button>
                </div>
                <div style={rowStyle}><span style={{
    width: '100%',
    fontSize: '0.8rem',
    fontStyle: 'italic'
  }}>${headless ? usagePrices.toFixed(8) : (usagePrices * 8).toFixed(8)}/second</span></div>
            </Card>
            <Card title="Price" icon="circle-dollar">
                <div style={rowStyle}><span style={labelStyle}>Base plan:</span> <span style={{
    background: flash ? '#e9d5ff' : 'transparent',
    transition: 'background 0.5s ease',
    marginLeft: 'auto'
  }}>${planPrices[plan].toFixed(2)}</span></div>
                <div style={rowStyle}><span style={labelStyle}>Usage:</span> <span style={{
    background: flash ? '#e9d5ff' : 'transparent',
    transition: 'background 0.5s ease',
    marginLeft: 'auto'
  }}>+${usageCost.toFixed(2)}</span></div>
                <div style={rowStyle}><span style={labelStyle}>Free credits:</span> <span style={{
    background: flash ? '#e9d5ff' : 'transparent',
    transition: 'background 0.5s ease',
    marginLeft: 'auto'
  }}>-${includedUsageCredits.toFixed(2)}</span></div>
                <div style={rowStyle}><span style={labelStyle}>Total cost:</span> <span style={{
    background: flash ? '#e9d5ff' : 'transparent',
    transition: 'background 0.5s ease',
    marginLeft: 'auto'
  }}>${price.toFixed(2)}</span></div>
            </Card>
        </Columns>;
};

With Kernel, you only pay for what you use and nothing more. You don't pay for idle time thanks to [Standby Mode](/browsers/standby), and you're never charged for proxies. Our goal is to be cost-effective, scalable, and transparent.

## Managed infrastructure

| Feature                         | Developer (free + usage) | Hobbyist (\$30 / mo + usage) | Start-Up (\$200 / mo + usage) | Enterprise   |
| ------------------------------- | ------------------------ | ---------------------------- | ----------------------------- | ------------ |
| Price per gb-second (\$)        | 0.0000166667             | 0.0000166667                 | 0.0000166667                  | Custom       |
| Headless browsers resource      | 1 gb                     | 1 gb                         | 1 gb                          | 1 gb         |
| Headful browsers resource       | 8 gb                     | 8 gb                         | 8 gb                          | 8 gb         |
| Free usage credits / mo         | \$5                      | \$10                         | \$50                          | Custom       |
| Extended browser timeouts       | ✅                        | ✅                            | ✅                             | ✅            |
| Browser live view               | ✅                        | ✅                            | ✅                             | ✅            |
| Configurable browser viewports  | ✅                        | ✅                            | ✅                             | ✅            |
| Managed stealth mode            | ✅                        | ✅                            | ✅                             | ✅            |
| Computer controls API           | ✅                        | ✅                            | ✅                             | ✅            |
| Browser replays                 | ❌                        | 7 days                       | 30 days                       | Custom       |
| Browser profiles                | ❌                        | ✅                            | ✅                             | ✅            |
| Managed auth profiles           | ❌                        | ✅                            | ✅                             | ✅            |
| File uploads & downloads        | ❌                        | ✅                            | ✅                             | ✅            |
| Configurable browser extensions | ❌                        | ❌                            | ✅                             | ✅            |
| Configurable & BYO proxies      | ❌                        | ❌                            | ✅                             | ✅            |
| Browser pools                   | ❌                        | ❌                            | ✅                             | ✅            |
| Support                         | Discord                  | Discord                      | Email                         | Shared Slack |
| SOC2 compliance                 | ✅                        | ✅                            | ✅                             | ✅            |
| HIPAA compliance (BAA)          | ❌                        | ❌                            | ❌                             | ✅            |

> Note: Included monthly credits apply to usage costs only.

## Reserved browsers (browser pools)

With Browser Pools, you pay the standard usage-based price per GB-second while browsers run, plus a small disk space charge when they are idle.

|                                 | Headful     | Headless   |
| ------------------------------- | ----------- | ---------- |
| Disk price per GB/hour          | \$0.001     | \$0.001    |
| Disk allocation per browser     | 4 GB        | 1 GB       |
| Example: 50 browsers idle/month | \$144/month | \$36/month |

> Note: Disk space charges are waived for Enterprise plan customers.

## Concurrency limits

| Feature                                                      | Developer (free + usage) | Hobbyist (\$30 / mo + usage) | Start-Up (\$200 / mo + usage) | Enterprise |
| ------------------------------------------------------------ | ------------------------ | ---------------------------- | ----------------------------- | ---------- |
| Reserved browsers ([browser pools](/browsers/scaling/pools)) | 0                        | 0                            | 100                           | Custom     |
| On-demand browsers                                           | 5                        | 10                           | 50                            | Custom     |
| Invocations                                                  | 5                        | 10                           | 50                            | Custom     |
| Invocations (per-app)                                        | 5                        | 10                           | 20                            | Custom     |
| Managed auth profiles                                        | N/A                      | 3                            | 20                            | Custom     |

> Note: Limits are org-wide by default unless stated otherwise. `Managed auth profiles` refer to the number of active auth profiles that Kernel maintains using your stored [Credentials](/auth/credentials) or [1Password connection](/integrations/1password).

## Pricing calculator

<PricingCalculator />