How much does it cost to fill the whole 1M-token window?
Scenario: 1,048,576 tokens in (long-context rate) and 1,000 tokens out.
| Tier | Cost |
|---|---|
| Flash | $2.52 |
| Max | $2.83 |
| Heavy | $3.15 |
Filling the window is possible but rarely necessary; send only what the question needs.
How it's calculated: input tokens × input price + output tokens × output price, per 1M tokens, rounded up per call to the next millionth of a dollar. Prices: Flash $1.60 / $3.40, Max $1.80 / $3.80, Heavy $2.00 / $4.40; prompts over 262K tokens bill their whole input at 1.5×. These are estimates from the list prices; Max and Heavy usually write more output tokens than Flash for the same task because they reason first.
See How much does SuperCosmos cost?.
Good to know#
- Line Code was retired on Nov 1, 2026; its ids answer
410 model_retired. Line Code retirement - Clatter Labs publishes its measurements of honesty, coding, efficiency and purity. Benchmark 2 results
- Not sure which tier?
autolets the product choose per step. What auto does
Still need help?#
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