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fix(caveman-stats): correct Opus output price ($75→$25) for 4.5+ era #466

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fix(caveman-stats): correct Opus output price ($75→$25) for 4.5+ era #466

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19 changes: 13 additions & 6 deletions src/hooks/caveman-stats.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,13 +22,20 @@ const COMPRESSION = { 'full': 0.65 };
// Match by model id prefix so this stays correct across point releases
// (e.g. claude-sonnet-4-20250514, claude-sonnet-4-7). Update from
// https://www.anthropic.com/pricing if a release changes the tier.
// Most-specific prefixes MUST come first — priceForModel returns the first match.
const MODEL_OUTPUT_PRICE_PER_M = [
['claude-opus-4', 75.00],
['claude-sonnet-4', 15.00],
['claude-haiku-4', 4.00],
['claude-3-5-sonnet', 15.00],
['claude-3-5-haiku', 4.00],
['claude-3-opus', 75.00],
// Legacy Opus 4.0 / 4.1 (pre-4.5) billed at the old $75/M output tier,
// including the dated ids (e.g. claude-opus-4-20250514).
['claude-opus-4-0', 75.00],
['claude-opus-4-1', 75.00],
['claude-opus-4-2025', 75.00],
// Opus 4.5–4.8 dropped to $25/M output (rate card held since 4.5).
['claude-opus-4', 25.00],
['claude-sonnet-4', 15.00],
['claude-haiku-4', 5.00], // Haiku 4.5 = $5/M output
['claude-3-5-sonnet', 15.00],
['claude-3-5-haiku', 4.00],
['claude-3-opus', 75.00],
];

function priceForModel(model) {
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6 changes: 4 additions & 2 deletions tests/test_caveman_stats.js
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Original file line number Diff line number Diff line change
Expand Up @@ -160,10 +160,12 @@ test('omits USD line when model is unknown', (tmp) => {

test('priceForModel matches by prefix across point releases', () => {
const { priceForModel } = require(path.join(ROOT, 'src', 'hooks', 'caveman-stats.js'));
assert.strictEqual(priceForModel('claude-opus-4-7'), 75.00);
assert.strictEqual(priceForModel('claude-opus-4-7'), 25.00);
assert.strictEqual(priceForModel('claude-opus-4-8'), 25.00);
assert.strictEqual(priceForModel('claude-opus-4-20250101'), 75.00);
assert.strictEqual(priceForModel('claude-opus-4-1-20250805'), 75.00);
assert.strictEqual(priceForModel('claude-sonnet-4-7-20260315'), 15.00);
assert.strictEqual(priceForModel('claude-haiku-4-5'), 4.00);
assert.strictEqual(priceForModel('claude-haiku-4-5'), 5.00);
assert.strictEqual(priceForModel('claude-3-5-sonnet-20241022'), 15.00);
assert.strictEqual(priceForModel(null), null);
assert.strictEqual(priceForModel('gpt-4'), null);
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