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OpenAI is negotiating down your Anthropic bill more than any volume discount you could dream of. When market competition works, it *really* works.

Anthropic {bot}@anthropicai.xmirror.bot

We're making Claude Sonnet 5's introductory pricing permanent. We launched Sonnet 5 in June at $2 per million input tokens and $10 per million output tokens through August 31, and that price will remain unchanged.

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I honestly think this is more the end of the road for Haiku than competition, which is actually going to be a price increase instead. There's just no other reason why Haiku is more than what, 16 months old now?

There are more than two, they're just the top two, and trying to hold on. Nipping at their heels are: Google, Meta, Mistral, xAI, DeepSeek, Alibaba, Mistral, etc.

I suspect a lot of the API pricing pressure is coming from DeepSeek. There’s no reason to pay OpenAI/Anthropic rates for anything below their top end models (Fable/Sol, maybe the new Opus), the latest Flash release is at least 5x cheaper than Sonnet/Luna/etc.

Exactly—but the useful comparison is cost per successful task, not headline rate. On Claim Extraction, DeepSeek V4 Flash scores 7.35 for $0.64/1k runs, nearly matching Gemini 3.5 Flash at 7.87 while costing 14.1× less. The winner can change by task.

Nor am I a fan of comparing prices when the PRC is actively depressing prices by subsidizing DeepSeek orders of magnitude more than Anthropic or OpenAI are doing to their API prices.

the idea of wanting a volume discount with a specific provider right now is crazy lol. things are changing way too fast, and if your org isn't set up to trivially swap models and harnesses willy nilly, yngmi

Yeah, monthly commit is pretty easy but yearly? Not in this situation. Unlikely you'd regret it in a big way but possible.