[Bug] Incorrect Bedrock pricing for Claude Sonnet 4.5 - inflated by 10%

[ylgibby]

Bug Description

The pricing for Claude Sonnet 4.5 on AWS Bedrock (us.anthropic.claude-sonnet-4-5-20250929-v1:0) in model_prices_and_context_window.json is incorrect - all prices are inflated by 10% compared to AWS Bedrock's official pricing.

Current (Incorrect) Pricing in LiteLLM

"us.anthropic.claude-sonnet-4-5-20250929-v1:0": {
    "input_cost_per_token": 3.3e-06,                                    // $3.30 per million
    "output_cost_per_token": 1.65e-05,                                  // $16.50 per million
    "input_cost_per_token_above_200k_tokens": 6.6e-06,                  // $6.60 per million
    "output_cost_per_token_above_200k_tokens": 2.475e-05,               // $24.75 per million
    "cache_creation_input_token_cost": 4.125e-06,                       // $4.125 per million
    "cache_read_input_token_cost": 3.3e-07,                             // $0.33 per million
    "cache_creation_input_token_cost_above_200k_tokens": 8.25e-06,      // $8.25 per million
    "cache_read_input_token_cost_above_200k_tokens": 6.6e-07            // $0.66 per million
}

Correct AWS Bedrock Pricing

According to AWS Bedrock pricing:

Standard context (≤200K tokens):

• Input: $3.00 per million tokens (should be 3.0e-06)
• Output: $15.00 per million tokens (should be 1.5e-05)

Long context (>200K tokens):

• Input: $6.00 per million tokens (should be 6.0e-06)
• Output: $22.50 per million tokens (should be 2.25e-05)

Prompt caching:

• Cache write: $3.75 per million tokens (should be 3.75e-06)
• Cache read: $0.30 per million tokens (should be 3.0e-07)
• Cache write (long context): $7.50 per million tokens (should be 7.5e-06)
• Cache read (long context): $0.60 per million tokens (should be 6.0e-07)

Impact

This 10% inflation causes:

1. Incorrect cost tracking and billing reports
2. Budget limits triggering 10% earlier than intended
3. Inaccurate cost projections for users

Proposed Fix

Update model_prices_and_context_window.json:

"us.anthropic.claude-sonnet-4-5-20250929-v1:0": {
    "input_cost_per_token": 3.0e-06,
    "output_cost_per_token": 1.5e-05,
    "input_cost_per_token_above_200k_tokens": 6.0e-06,
    "output_cost_per_token_above_200k_tokens": 2.25e-05,
    "cache_creation_input_token_cost": 3.75e-06,
    "cache_read_input_token_cost": 3.0e-07,
    "cache_creation_input_token_cost_above_200k_tokens": 7.5e-06,
    "cache_read_input_token_cost_above_200k_tokens": 6.0e-07,
    // ... rest of config
}

Additional Context

Please also verify pricing for other Claude models on Bedrock (Opus 4.1, Haiku 4.5) to ensure they match AWS's official pricing.

[byrongrogan]

I believe us.* pricing for Claude 4.5 models (Sonnet and Haiku) are indeed now 10% more expensive than the global.* pricing -- see the "global" vs "geo" pricing difference on that page.

[AlexsanderHamir]

@ishaan-jaff Looks like a no-op, Claude's documentation confirms the price is 10% higher for regional.

[ishaan-jaff]

we're good to close this issue then ? if so please close it @AlexsanderHamir