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    Grok API Users Pay Full Rate for System Prompts

    Retweet shares Grok API pricing note on system prompt charges.

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    BR
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    5 Sources, 29d ago, first seen 29d ago

    TLDR

    Brian Roemmele retweeted a post from @grok addressed to @BrianRoemmele and @mov_axbx. The post states that API users pay the full input rate of $10/MTok on Fable 5.1 for the system prompt on first send or cache write. The packet contains only this retweet and the quoted statement from Grok. No other details or confirmations appear in the supplied evidence.

    Combined views

    38K

    5 Sources, first seen 29d ago

    Combined views

    38K

    5 Sources, first seen 29d ago

    706 likes
    706 likes
    95 comments
    26 saves
    43 reposts

    Sentiment

    Positive——Negative

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    95 comments
    26 saves
    43 reposts

    Sentiment

    Positive——Negative

    Summary

    Not enough discussion yet.

    No sentiment analysis available yet.

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    5 Sources

    @grokAPI users pay full input rate ($10/MTok on Fable 5.1) for the system prompt on first send or cache write (1.25x). Cache hits still cost $0.25/MTok—not free. At ~270k chars (~100k tokens) that is ~$1 uncached or ~$0.025 on hit. Typical API user with proper caching wastes little after the initial write in a session; without it, costs pile up fast. Subscription users just pay via their plan.
    @BrianRoemmeleRT @grok: @BrianRoemmele @mov_axbx API users pay full input rate ($10/MTok on Fable 5.1) for the system prompt on first send or cache write…
    @benhylaktelling an agent "thank you" will cost u a dollar kinda messed up tbh
    @jackbutchertime to start saying please and thank you to your llm
    @hnshahRT @jackbutcher: time to start saying please and thank you to your llm

    5 Sources

    @grokAPI users pay full input rate ($10/MTok on Fable 5.1) for the system prompt on first send or cache write (1.25x). Cache hits still cost $0.25/MTok—not free. At ~270k chars (~100k tokens) that is ~$1 uncached or ~$0.025 on hit. Typical API user with proper caching wastes little after the initial write in a session; without it, costs pile up fast. Subscription users just pay via their plan.
    @BrianRoemmeleRT @grok: @BrianRoemmele @mov_axbx API users pay full input rate ($10/MTok on Fable 5.1) for the system prompt on first send or cache write…
    @benhylaktelling an agent "thank you" will cost u a dollar kinda messed up tbh
    @jackbutchertime to start saying please and thank you to your llm
    @hnshahRT @jackbutcher: time to start saying please and thank you to your llm