diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3897bac..5a82436 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## 2026-08-29
+
+### Changes
+
+- [Provider] Groq prompt cache hits are counted again. Groq reports how much of a prompt it served
+  from cache, but the pinned `@ai-sdk/groq` build read that number out of the response and then
+  dropped it, so every Groq request was recorded as a full-price miss and the cache hit rate showed
+  as zero no matter how much of the prompt was actually reused. Upgrading the provider carries the
+  number through to the run stats and to Langfuse, which records it as `cache_read.input_tokens`.
+  Groq's cache lives on the node that served the request, so expect an uneven rate — a hit covers
+  almost the whole prompt, but only some requests get one.
+
 ## 2026-08-28
 
 ### Changes
diff --git a/bun.lock b/bun.lock
index a062e6c..66eea9d 100644
--- a/bun.lock
+++ b/bun.lock
@@ -7,7 +7,7 @@
       "dependencies": {
         "@ai-sdk/anthropic": "^4.0",
         "@ai-sdk/google": "^4.0.18",
-        "@ai-sdk/groq": "^4.0",
+        "@ai-sdk/groq": "^4.0.34",
         "@ai-sdk/mistral": "^4.0.13",
         "@ai-sdk/openai": "^4.0",
         "@ai-sdk/otel": "^1.0.2",
@@ -29,6 +29,7 @@
         "ai": "^7.0.2",
         "axe-core": "^4.11.1",
         "bash-tool": "^1.3.15",
+        "chalk": "^5.6.2",
         "cli-highlight": "^2.1.11",
         "codeceptjs": "4.0.0-rc.16",
         "commander": "^14.0.1",
@@ -96,7 +97,7 @@
 
     "@ai-sdk/google": ["@ai-sdk/google@4.0.18", "", { "dependencies": { "@ai-sdk/provider": "4.0.3", "@ai-sdk/provider-utils": "5.0.11" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-NRbXRAasXLgFLiZDTsDUiTUuQtEUDVZoqruB5Px3geltTEqOzOo2eHN5WnDp0/OgxwnrNH4olV/TVetza0PzmQ=="],
 
-    "@ai-sdk/groq": ["@ai-sdk/groq@4.0.0", "", { "dependencies": { "@ai-sdk/provider": "4.0.0", "@ai-sdk/provider-utils": "5.0.0" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-QjhpyudO8eGi+C/kjVzSKfVFsLcuXi4smOez8njQITrV+5wZlKJ1xvoHyQom1FlgC9PsR4Ee6icGIqogoSb1Vg=="],
+    "@ai-sdk/groq": ["@ai-sdk/groq@4.0.34", "", { "dependencies": { "@ai-sdk/provider": "4.0.8", "@ai-sdk/provider-utils": "5.0.33" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-k9nZLVRnw8RB0IivCwBxNMNe1E/P0cP+2ymxEZkqxZHeThxZ0/LqefHWa6wtjhPKWADL+AgnVfKLSL7TW28wNw=="],
 
     "@ai-sdk/mistral": ["@ai-sdk/mistral@4.0.13", "", { "dependencies": { "@ai-sdk/provider": "4.0.3", "@ai-sdk/provider-utils": "5.0.11" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-VYEWPEY6MhhvUKE0Huu63NJXowu2/nbbO60kE6/sdV9mLTk36PahQ7lNZFkJ2XJQ3eUy19RRWQDqYmyxKMiPlA=="],
 
@@ -2656,6 +2657,10 @@
 
     "@ai-sdk/google/@ai-sdk/provider-utils": ["@ai-sdk/provider-utils@5.0.11", "", { "dependencies": { "@ai-sdk/provider": "4.0.3", "@standard-schema/spec": "^1.1.0", "@workflow/serde": "4.1.0", "eventsource-parser": "^3.0.8" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-7/96wE+ZsKB35iS9ASyllrE4Ym/EolXEB7AkuJ5FI++fmS85BVTAs77890C+1Z2jwHfBKjBQSBmsliOsAh0iFQ=="],
 
+    "@ai-sdk/groq/@ai-sdk/provider": ["@ai-sdk/provider@4.0.8", "", { "dependencies": { "json-schema": "^0.4.0" } }, "sha512-aWO7iwhFUGf347tCwNGggggfmZigaSu7TF739IZSrWWABUp7zkb4Cr3fMqvBe5EIS7ABJJu3Cadn0g/zs1G0QQ=="],
+
+    "@ai-sdk/groq/@ai-sdk/provider-utils": ["@ai-sdk/provider-utils@5.0.33", "", { "dependencies": { "@ai-sdk/provider": "4.0.8", "@standard-schema/spec": "^1.1.0", "@workflow/serde": "4.1.0", "eventsource-parser": "^3.0.8", "undici": "^7.28.0" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-TfjJqJmRsQyxAlb+3hGmP1o1xLUIT79yhOgtJuTF4hqsB37IC3CufGsuFhU04EeTOg7R9iptQ6Bzm0MW0n/c3g=="],
+
     "@ai-sdk/mistral/@ai-sdk/provider": ["@ai-sdk/provider@4.0.3", "", { "dependencies": { "json-schema": "^0.4.0" } }, "sha512-e0CpNWJUY7OxAFAnCZkw+ri9QOHWwTs1tXP42782KFGCU07qt8NiXCrCVowyCB5dP2r5/Uls+g2oPd8kOJn9dw=="],
 
     "@ai-sdk/mistral/@ai-sdk/provider-utils": ["@ai-sdk/provider-utils@5.0.11", "", { "dependencies": { "@ai-sdk/provider": "4.0.3", "@standard-schema/spec": "^1.1.0", "@workflow/serde": "4.1.0", "eventsource-parser": "^3.0.8" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-7/96wE+ZsKB35iS9ASyllrE4Ym/EolXEB7AkuJ5FI++fmS85BVTAs77890C+1Z2jwHfBKjBQSBmsliOsAh0iFQ=="],
@@ -3318,6 +3323,8 @@
 
     "yup/type-fest": ["type-fest@2.19.0", "", {}, "sha512-RAH822pAdBgcNMAfWnCBU3CFZcfZ/i1eZjwFU/dsLKumyuuP3niueg2UAukXYF0E2AAoc82ZSSf9J0WQBinzHA=="],
 
+    "@ai-sdk/groq/@ai-sdk/provider-utils/undici": ["undici@7.29.0", "", {}, "sha512-IDxfleLmmbSskfWSUATiN1nfn2rDuvnMOqb5CWR92iIfojA0Ud+ulOAAEQ57LPr9rWmsreUyf5lwyao+7GNNVw=="],
+
     "@ai-sdk/openai-compatible/@ai-sdk/provider-utils/eventsource-parser": ["eventsource-parser@3.0.6", "", {}, "sha512-Vo1ab+QXPzZ4tCa8SwIHJFaSzy4R6SHf7BY79rFBDf0idraZWAkYrDjDj8uWaSm3S2TK+hJ7/t1CEmZ7jXw+pg=="],
 
     "@ai-sdk/openai-compatible/@ai-sdk/provider-utils/zod-to-json-schema": ["zod-to-json-schema@3.25.1", "", { "peerDependencies": { "zod": "^3.25 || ^4" } }, "sha512-pM/SU9d3YAggzi6MtR4h7ruuQlqKtad8e9S0fmxcMi+ueAK5Korys/aWcV9LIIHTVbj01NdzxcnXSN+O74ZIVA=="],
diff --git a/package.json b/package.json
index f641f9a..b93c990 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
   "dependencies": {
     "@ai-sdk/anthropic": "^4.0",
     "@ai-sdk/google": "^4.0.18",
-    "@ai-sdk/groq": "^4.0",
+    "@ai-sdk/groq": "^4.0.34",
     "@ai-sdk/mistral": "^4.0.13",
     "@ai-sdk/openai": "^4.0",
     "@ai-sdk/otel": "^1.0.2",