Update Weave Router scores to v0.62 (#1) (#41)

* Update Weave Router scores to v0.62

Weave Router v0.62 submission re-took #1 on the leaderboard. Updated
the headline leaderboard entry with the new RouterArena eval results:

- Arena Score: 74.61 → 76.09
- Accuracy: 78.43 → 79.32
- Cost per 1k: $0.92 → $0.61
- Robustness Score: 79.05 → 79.76
- Opt. Selection: 1.27 → 5.60
- Opt. Cost: 12.10 → 17.19
- Opt. Accuracy: 89.56 → 89.21

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* Update Weave Router metadata to v0.62 (modelPool + description)

Mirrors the v0.62 submission config (RouterArena PR #102):
- 12-model pool -> 7 models (drops claude-sonnet/haiku-4-5, gpt-5.4-mini,
  gpt-4.1, qwen3.5-flash-02-23, kimi-k2.5; adds qwen3-235b-a22b-2507)
- description updated to mention v0.62 specifics: Jina v2 INT8 ONNX
  (768-dim) embeddings, top-p=4 cluster sum, k=160 clusters, alpha=0.25

Category scores and flip labels are intentionally left at v0.27-derived
values for this PR; can be refreshed in a follow-up once v0.62 predictions
are available locally.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
Co-authored-by: yl231 <yl231@users.noreply.github.com>

Author: 3 people

src/data/routerMetrics/leaderboard.json

@@ -12,14 +12,14 @@
   },
   {
     "Router Name": "Weave Router",
-    "Arena Score": 74.61,
-    "Optimal Selection Score": 1.27,
-    "Optimal Cost Score": 12.1,
-    "Optimal Acc. Score": 89.56,
-    "Robustness Score": 79.05,
+    "Arena Score": 76.09,
+    "Optimal Selection Score": 5.6,
+    "Optimal Cost Score": 17.19,
+    "Optimal Acc. Score": 89.21,
+    "Robustness Score": 79.76,
     "Latency Score": null,
-    "Accuracy": 78.43,
-    "Cost per 1k": 0.92
+    "Accuracy": 79.32,
+    "Cost per 1k": 0.61
   },
   {
     "Router Name": "R2-Router",

src/data/routers.json

@@ -15,21 +15,16 @@
   "Weave Router": {
     "name": "Weave Router",
     "type": "open-source",
-    "description": "Cluster-routing over a 12-model BYOK pool spanning Anthropic, OpenAI, Google, and OpenRouter providers. Embeds each prompt, scores against per-cluster model rankings, and selects the cost-quality optimum via an alpha-blended score.",
+    "description": "Cluster-routing (v0.62) over a 7-model BYOK pool spanning Anthropic, OpenAI, Google, and OpenRouter providers. Embeds each prompt with Jina v2 INT8 ONNX (768-dim), runs top-p=4 cluster sum against per-cluster rankings trained on the RouterArena full split with k=160 clusters, then selects the cost-quality optimum via an alpha-blended score (alpha=0.25).",
     "affiliation": "Weave",
     "modelPool": [
       "claude-opus-4-7",
-      "claude-sonnet-4-5",
-      "claude-haiku-4-5",
       "gpt-5.5",
-      "gpt-5.4-mini",
-      "gpt-4.1",
       "gemini-3.1-pro-preview",
       "gemini-3.1-flash-lite-preview",
       "deepseek/deepseek-v4-pro",
       "deepseek/deepseek-v4-flash",
-      "qwen/qwen3.5-flash-02-23",
-      "moonshotai/kimi-k2.5"
+      "qwen/qwen3-235b-a22b-2507"
     ],
     "websiteUrl": "https://weaverouter.com",
     "githubUrl": "https://github.com/workweave/router"

src/data/routers.yaml

@@ -1,21 +1,16 @@
 Weave Router:
   name: Weave Router
   type: open-source
-  description: Cluster-routing over a 12-model BYOK pool spanning Anthropic, OpenAI, Google, and OpenRouter providers. Embeds each prompt, scores against per-cluster model rankings, and selects the cost-quality optimum via an alpha-blended score.
+  description: Cluster-routing (v0.62) over a 7-model BYOK pool spanning Anthropic, OpenAI, Google, and OpenRouter providers. Embeds each prompt with Jina v2 INT8 ONNX (768-dim), runs top-p=4 cluster sum against per-cluster rankings trained on the RouterArena full split with k=160 clusters, then selects the cost-quality optimum via an alpha-blended score (alpha=0.25).
   affiliation: Weave
   modelPool:
     - claude-opus-4-7
-    - claude-sonnet-4-5
-    - claude-haiku-4-5
     - gpt-5.5
-    - gpt-5.4-mini
-    - gpt-4.1
     - gemini-3.1-pro-preview
     - gemini-3.1-flash-lite-preview
     - deepseek/deepseek-v4-pro
     - deepseek/deepseek-v4-flash
-    - qwen/qwen3.5-flash-02-23
-    - moonshotai/kimi-k2.5
+    - qwen/qwen3-235b-a22b-2507
   websiteUrl: https://weaverouter.com
   githubUrl: https://github.com/workweave/router