[BUG] Bedrock Sonnet 4.5 EU pricing seems way off

[jscheid]

Basic checks

• I searched existing issues - this hasn't been reported
• I can reproduce this consistently
• This is a RubyLLM bug, not my application code

What's broken?

When I run RubyLLM::Models.refresh! I can see the following in the output:

   #<RubyLLM::Model::Info:0x0000ffff3c3b9610
    @capabilities=["streaming", "function_calling"],
    @context_window=200000,
    @created_at=nil,
    @family=:other,
    @id="eu.anthropic.claude-sonnet-4-5-20250929-v1:0",
    @knowledge_cutoff=nil,
    @max_output_tokens=4096,
    @metadata={provider_name: "Anthropic", inference_types: ["INFERENCE_PROFILE"], streaming_supported: true, input_modalities: ["TEXT", "IMAGE"], output_modalities: ["TEXT"]},
    @modalities=#<RubyLLM::Model::Modalities:0x0000ffff3c3a2ac8 @input=["text", "image", "pdf"], @output=["text"]>,
    @name="Claude Sonnet 4.5",
    @pricing=
     #<RubyLLM::Model::Pricing:0x0000ffff3c3a2a50
      @data=
       {text_tokens:
         #<RubyLLM::Model::PricingCategory:0x0000ffff3c3a29b0
          @batch=#<RubyLLM::Model::PricingTier:0x0000ffff3c3a2910 @values={input_per_million: 0.05, output_per_million: 0.1}>,
          @standard=#<RubyLLM::Model::PricingTier:0x0000ffff3c3a2960 @values={input_per_million: 0.1, output_per_million: 0.2}>>}>,
    @provider="bedrock">,

... but according to https://aws.amazon.com/bedrock/pricing/, the cost of 1M non-batch input tokens with Sonnet 4.5 in the EU is $3, not $0.1. For 1M output tokens it's $15, not $0.2. (Those are the same prices as on https://docs.claude.com/en/docs/about-claude/pricing)

I understand you're using a third party service here but perhaps it would be a good idea to flag the pricing info as unreliable?

I think if it was just a flat file where you could easily see in git that it's stale, maybe that would be a different story, but the refresh! method suggests that it's pulling accurate(ish) data from somewhere which doesn't seem to be the case.

On a side note, the output also shows batch pricing but Bedrock/Sonnet4.5 doesn't support batching and there are no prices listed.

How to reproduce

Ensure AWS credentials are present, then:

RubyLLM::Models.refresh!
RubyLLM::Models.find("eu.anthropic.claude-sonnet-4-5-20250929-v1:0").pricing.text_tokens.standard.to_h
=> {input_per_million: 0.1, output_per_million: 0.2}

Expected behavior

RubyLLM::Models.refresh!
RubyLLM::Models.find("eu.anthropic.claude-sonnet-4-5-20250929-v1:0").pricing.text_tokens.standard.to_h
=> {input_per_million: 3, output_per_million: 15}

What actually happened

Environment

RubyLLM version a0efaa4 but I've also verified with 1.8.2.

[crmne]

Thanks for reporting this! Would you like to PR it?

[jscheid]

Thanks for reporting this! Would you like to PR it?

Hi @crmne, I've moved on from this library - I think it's great but for my particular use case it proved to be an unnecessary abstraction. So, I'm not interested in making a PR for this.

However there seems to be some interest from the community in #454 and I'm happy to help land it.