diff --git a/lib/pricing.ts b/lib/pricing.ts
index 3bf6a0bb2..c3d547399 100644
--- a/lib/pricing.ts
+++ b/lib/pricing.ts
@@ -20,7 +20,8 @@
  * start a priced run on such a model (bin/gstack-eval-plan dry-run).
  *   - Anthropic: https://www.anthropic.com/pricing#api
  *   - OpenAI: https://openai.com/api/pricing/
- *   - Google AI: https://ai.google.dev/pricing
+ *   - Google AI: https://ai.google.dev/gemini-api/docs/pricing
+ *   - Voyage AI (embeddings): https://docs.voyageai.com/docs/pricing
  */
 
 export interface ModelPricing {
@@ -45,7 +46,10 @@ export const PRICING: Record<string, ModelPricing> = {
   'claude-fable-5-1':  { input_per_mtok: 10.00, output_per_mtok: 50.00, cached_input_per_mtok: 0.25, as_of: '2026-09' },
   // https://platform.claude.com/docs/en/models/opus-5-5/overview#pricing (list prices effective 2026-10-07)
   'claude-opus-5-5':    { input_per_mtok: 4.00,  output_per_mtok: 20.00, cached_input_per_mtok: 0.20, as_of: '2026-10' },
-  'claude-opus-4-7':    { input_per_mtok: 15.00, output_per_mtok: 75.00, as_of: '2026-04' },
+  // https://platform.claude.com/docs/en/about-claude/pricing (fetched 2026-10-12)
+  'claude-opus-4-7':    { input_per_mtok: 5.00,  output_per_mtok: 25.00, cached_input_per_mtok: 0.50, as_of: '2026-10' },
+  // https://platform.claude.com/docs/en/about-claude/pricing (fetched 2026-10-12)
+  'claude-sonnet-5-5':  { input_per_mtok: 2.00,  output_per_mtok: 10.00, cached_input_per_mtok: 0.10, as_of: '2026-10' },
   'claude-sonnet-4-6':  { input_per_mtok: 3.00,  output_per_mtok: 15.00, as_of: '2026-04' },
   'claude-haiku-4-5':   { input_per_mtok: 1.00,  output_per_mtok: 5.00,  as_of: '2026-04' },
 
@@ -60,14 +64,46 @@ export const PRICING: Record<string, ModelPricing> = {
   'o4-mini':            { input_per_mtok: 1.10,  output_per_mtok: 4.40,  as_of: '2026-04' },
 
   // Google
+  // https://ai.google.dev/gemini-api/docs/pricing (fetched 2026-10-12; standard tier through 2026-12-31,
+  // the page lists $1.50 / $7.50 / $0.15 cached starting 2027-01-01)
+  'gemini-3.8-flash':   { input_per_mtok: 0.75,  output_per_mtok: 3.75,  cached_input_per_mtok: 0.075, as_of: '2026-10' },
+  // https://ai.google.dev/gemini-api/docs/pricing (fetched 2026-10-12; same schedule as gemini-3.8-flash)
+  'gemini-3.6-flash':   { input_per_mtok: 0.75,  output_per_mtok: 3.75,  cached_input_per_mtok: 0.075, as_of: '2026-10' },
+  // https://ai.google.dev/gemini-api/docs/pricing (fetched 2026-10-12; prompts <= 200k tokens, the long-context rate is excluded)
+  'gemini-3.1-pro-preview': { input_per_mtok: 2.00, output_per_mtok: 12.00, cached_input_per_mtok: 0.20, as_of: '2026-10' },
   'gemini-2.5-pro':     { input_per_mtok: 1.25,  output_per_mtok: 5.00,  as_of: '2026-04' },
   'gemini-2.5-flash':   { input_per_mtok: 0.30,  output_per_mtok: 1.20,  as_of: '2026-04' },
 };
 
-/** A provider-prefixed id (`openai/gpt-6-astra`, `anthropic/claude-fable-5-1`) resolves to its table row. */
+/**
+ * Embedding models bill input tokens only (output_per_mtok 0), so they live
+ * beside PRICING rather than in it: eval arms never resolve to an embedding
+ * model, but a call plan (docs/eval-calls.md) prices gbrain's embedding calls.
+ */
+export const EMBEDDING_PRICING: Record<string, ModelPricing> = {
+  // https://docs.voyageai.com/docs/pricing (fetched 2026-10-12; list price after the free-token allowance)
+  'voyage-4':             { input_per_mtok: 0.06, output_per_mtok: 0, as_of: '2026-10' },
+  'voyage-4-large':       { input_per_mtok: 0.12, output_per_mtok: 0, as_of: '2026-10' },
+  'voyage-4-lite':        { input_per_mtok: 0.02, output_per_mtok: 0, as_of: '2026-10' },
+  'voyage-code-4':        { input_per_mtok: 0.12, output_per_mtok: 0, as_of: '2026-10' },
+  'voyage-code-3':        { input_per_mtok: 0.18, output_per_mtok: 0, as_of: '2026-10' },
+  'voyage-3-large':       { input_per_mtok: 0.18, output_per_mtok: 0, as_of: '2026-10' },
+  'voyage-multimodal-3':  { input_per_mtok: 0.12, output_per_mtok: 0, as_of: '2026-10' }, // text tokens; pixels excluded
+  // https://developers.openai.com/api/docs/pricing (fetched 2026-10-12)
+  'text-embedding-3-large': { input_per_mtok: 0.13, output_per_mtok: 0, as_of: '2026-10' },
+  'text-embedding-3-small': { input_per_mtok: 0.02, output_per_mtok: 0, as_of: '2026-10' },
+  // https://ai.google.dev/gemini-api/docs/pricing (fetched 2026-10-12; text input, standard tier)
+  'gemini-embedding-2':   { input_per_mtok: 0.20, output_per_mtok: 0, as_of: '2026-10' },
+};
+
+/**
+ * A provider-prefixed id (`openai/gpt-6-astra`, `anthropic/claude-fable-5-1`,
+ * or gbrain's `voyage:voyage-4`) resolves to its table row.
+ */
 export function pricingRow(model: string | undefined): ModelPricing | undefined {
   if (!model) return undefined;
-  return PRICING[model] ?? PRICING[model.replace(/^[a-z-]+\//, '')];
+  const bare = model.replace(/^[a-z-]+[/:]/, '');
+  return PRICING[model] ?? PRICING[bare] ?? EMBEDDING_PRICING[model] ?? EMBEDDING_PRICING[bare];
 }
 
 export function hasPricing(model: string | undefined): boolean {
diff --git a/test/benchmark-runner.test.ts b/test/benchmark-runner.test.ts
index 993de4759..f8e627960 100644
--- a/test/benchmark-runner.test.ts
+++ b/test/benchmark-runner.test.ts
@@ -23,10 +23,10 @@ test('estimateCostUsd returns 0 for unknown model (no crash)', () => {
 });
 
 test('estimateCostUsd computes correctly for known Claude model', () => {
-  // claude-opus-4-7: $15/MTok input, $75/MTok output
-  // 1M input + 0.5M output = $15 + $37.50 = $52.50
+  // claude-opus-4-7: $5/MTok input, $25/MTok output (platform.claude.com pricing, fetched 2026-10-12)
+  // 1M input + 0.5M output = $5 + $12.50 = $17.50
   const cost = estimateCostUsd({ input: 1_000_000, output: 500_000 }, 'claude-opus-4-7');
-  expect(cost).toBeCloseTo(52.50, 2);
+  expect(cost).toBeCloseTo(17.50, 2);
 });
 
 for (const model of [CLAUDE_FRONTIER_EVAL_MODEL, CODEX_FRONTIER_MODEL]) {
@@ -48,12 +48,12 @@ test('Astra cache reads use its standard cached-input rate', () => {
 
 test('estimateCostUsd applies cached input discount alongside uncached input', () => {
   // tokens.input is uncached-only; tokens.cached is disjoint cache-reads at 10%.
-  // 0 uncached input, 1M cached → 10% of 15 = $1.50
+  // 0 uncached input, 1M cached → 10% of 5 = $0.50
   const cost1 = estimateCostUsd({ input: 0, output: 0, cached: 1_000_000 }, 'claude-opus-4-7');
-  expect(cost1).toBeCloseTo(1.50, 2);
-  // 500K uncached input + 500K cached → $7.50 + $0.75 = $8.25
+  expect(cost1).toBeCloseTo(0.50, 2);
+  // 500K uncached input + 500K cached → $2.50 + $0.25 = $2.75
   const cost2 = estimateCostUsd({ input: 500_000, output: 0, cached: 500_000 }, 'claude-opus-4-7');
-  expect(cost2).toBeCloseTo(8.25, 2);
+  expect(cost2).toBeCloseTo(2.75, 2);
 });
 
 test('PRICING table covers the key model families', () => {
diff --git a/test/pricing-eval-plan.test.ts b/test/pricing-eval-plan.test.ts
index d6e8e413a..399288e31 100644
--- a/test/pricing-eval-plan.test.ts
+++ b/test/pricing-eval-plan.test.ts
@@ -156,3 +156,15 @@ describe('priced pilot', () => {
     expect(r.projection.verdict).toBe('unknown');
   });
 });
+
+describe('pricing rows with fetched sources (2026-10-12)', () => {
+  test('the newest Sonnet, the newest Gemini Flash and gbrain embedding models are priced; Opus 4.7 is at its current list price', () => {
+    expect(hasPricing('anthropic/claude-sonnet-5-5')).toBe(true);
+    expect(estimateCostUsd({ input: 1_000_000, output: 1_000_000 }, 'claude-sonnet-5-5')).toBe(12);
+    expect(estimateCostUsd({ input: 1_000_000, output: 1_000_000 }, 'claude-opus-4-7')).toBe(30);
+    expect(hasPricing('google/gemini-3.8-flash')).toBe(true);
+    for (const m of ['voyage:voyage-4', 'openai:text-embedding-3-large', 'text-embedding-3-small', 'gemini-embedding-2']) expect(hasPricing(m)).toBe(true);
+    expect(estimateCostUsd({ input: 1_000_000, output: 0 }, 'voyage:voyage-4')).toBe(0.06);
+    expect(hasPricing('voyage-4-nano')).toBe(false);
+  });
+});