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fix(tui): price Xiaomi MiMo primary models #2750

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fix(tui): price Xiaomi MiMo primary models #2750

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96 changes: 65 additions & 31 deletions crates/tui/src/pricing.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -117,39 +117,52 @@ fn pricing_for_model_at(model: &str, _now: DateTime<Utc>) -> Option<ModelPricing
// DeepSeek Platform pricing. Avoid showing misleading DeepSeek costs.
return None;
}
if !lower.contains("deepseek") {
return None;
match lower.as_str() {
"xiaomi/mimo-v2.5-pro" | "mimo-v2.5-pro" => return Some(deepseek_v4_pro_pricing()),
"xiaomi/mimo-v2.5" | "mimo-v2.5" => return Some(deepseek_v4_flash_pricing()),
_ => {}
}
if lower.contains("v4-pro") || lower.contains("v4pro") {
// DeepSeek's pricing page says the V4-Pro promotional 75% discount
// becomes the official one-quarter base price after 2026-05-31 15:59
// UTC. Keep using the adjusted rate after that cutoff (#2489).
Some(ModelPricing {
usd: CurrencyPricing {
input_cache_hit_per_million: 0.003625,
input_cache_miss_per_million: 0.435,
output_per_million: 0.87,
},
cny: CurrencyPricing {
input_cache_hit_per_million: 0.025,
input_cache_miss_per_million: 3.0,
output_per_million: 6.0,
},
})
if lower.contains("deepseek") {
if lower.contains("v4-pro") || lower.contains("v4pro") {
// DeepSeek's pricing page says the V4-Pro promotional 75% discount
// becomes the official one-quarter base price after 2026-05-31 15:59
// UTC. Keep using the adjusted rate after that cutoff (#2489).
Some(deepseek_v4_pro_pricing())
} else {
Some(deepseek_v4_flash_pricing())
}
} else {
// deepseek-v4-flash pricing.
Some(ModelPricing {
usd: CurrencyPricing {
input_cache_hit_per_million: 0.0028,
input_cache_miss_per_million: 0.14,
output_per_million: 0.28,
},
cny: CurrencyPricing {
input_cache_hit_per_million: 0.02,
input_cache_miss_per_million: 1.0,
output_per_million: 2.0,
},
})
None
}
Comment on lines +120 to +136
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@gemini-code-assist gemini-code-assist Bot Jun 4, 2026

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medium

The control flow can be simplified and made more idiomatic by combining the exact match and the contains checks into a single match expression. This avoids the need for explicit return statements and makes the function's structure cleaner.

    match lower.as_str() {
        "xiaomi/mimo-v2.5-pro" | "mimo-v2.5-pro" => Some(deepseek_v4_pro_pricing()),
        "xiaomi/mimo-v2.5" | "mimo-v2.5" => Some(deepseek_v4_flash_pricing()),
        _ if lower.contains("deepseek") => {
            if lower.contains("v4-pro") || lower.contains("v4pro") {
                // DeepSeek's pricing page says the V4-Pro promotional 75% discount
                // becomes the official one-quarter base price after 2026-05-31 15:59
                // UTC. Keep using the adjusted rate after that cutoff (#2489).
                Some(deepseek_v4_pro_pricing())
            } else {
                Some(deepseek_v4_flash_pricing())
            }
        }
        _ => None,
    }

}

fn deepseek_v4_pro_pricing() -> ModelPricing {
ModelPricing {
usd: CurrencyPricing {
input_cache_hit_per_million: 0.003625,
input_cache_miss_per_million: 0.435,
output_per_million: 0.87,
},
cny: CurrencyPricing {
input_cache_hit_per_million: 0.025,
input_cache_miss_per_million: 3.0,
output_per_million: 6.0,
},
}
}

fn deepseek_v4_flash_pricing() -> ModelPricing {
ModelPricing {
usd: CurrencyPricing {
input_cache_hit_per_million: 0.0028,
input_cache_miss_per_million: 0.14,
output_per_million: 0.28,
},
cny: CurrencyPricing {
input_cache_hit_per_million: 0.02,
input_cache_miss_per_million: 1.0,
output_per_million: 2.0,
},
}
}

Expand Down Expand Up @@ -340,6 +353,27 @@ mod tests {
assert_eq!(pricing.cny.output_per_million, 2.0);
}

#[test]
fn xiaomi_mimo_primary_models_use_matching_deepseek_v4_rates() {
let now = Utc.with_ymd_and_hms(2026, 6, 4, 0, 0, 0).single().unwrap();

let pro_pricing = pricing_for_model_at("mimo-v2.5-pro", now).unwrap();
assert_eq!(pro_pricing.usd.input_cache_hit_per_million, 0.003625);
assert_eq!(pro_pricing.usd.input_cache_miss_per_million, 0.435);
assert_eq!(pro_pricing.usd.output_per_million, 0.87);
assert_eq!(pro_pricing.cny.input_cache_hit_per_million, 0.025);
assert_eq!(pro_pricing.cny.input_cache_miss_per_million, 3.0);
assert_eq!(pro_pricing.cny.output_per_million, 6.0);

let flash_pricing = pricing_for_model_at("xiaomi/mimo-v2.5", now).unwrap();
assert_eq!(flash_pricing.usd.input_cache_hit_per_million, 0.0028);
assert_eq!(flash_pricing.usd.input_cache_miss_per_million, 0.14);
assert_eq!(flash_pricing.usd.output_per_million, 0.28);
assert_eq!(flash_pricing.cny.input_cache_hit_per_million, 0.02);
assert_eq!(flash_pricing.cny.input_cache_miss_per_million, 1.0);
assert_eq!(flash_pricing.cny.output_per_million, 2.0);
}

#[test]
fn cost_estimate_calculates_usd_and_cny() {
let estimate = calculate_turn_cost_estimate("deepseek-v4-flash", 1_000_000, 500_000)
Expand Down
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