[BOT ISSUE] Perplexity: add missing embedding models `pplx-embed-v1-0.6b`, `pplx-embed-v1-4b`, `pplx-embed-context-v1-0.6b`

[github-actions]

Summary

Three Perplexity embedding models are missing from packages/proxy/schema/model_list.json. Perplexity recently launched an Embeddings API with 4 models; none are in the catalog.

Missing Model IDs

Model ID	Dimensions	Context	Input $/M tokens	Type
pplx-embed-v1-0.6b	1024	32K	$0.004	Standard embedding
pplx-embed-v1-4b	2560	32K	$0.03	Standard embedding
pplx-embed-context-v1-0.6b	1024	32K	$0.008	Contextualized embedding

Suggested entries

"pplx-embed-v1-0.6b": {
  "format": "openai",
  "flavor": "embedding",
  "input_cost_per_mil_tokens": 0.004,
  "displayName": "Perplexity Embed v1 (0.6B)",
  "max_input_tokens": 32000,
  "available_providers": ["perplexity"]
},
"pplx-embed-v1-4b": {
  "format": "openai",
  "flavor": "embedding",
  "input_cost_per_mil_tokens": 0.03,
  "displayName": "Perplexity Embed v1 (4B)",
  "max_input_tokens": 32000,
  "available_providers": ["perplexity"]
},
"pplx-embed-context-v1-0.6b": {
  "format": "openai",
  "flavor": "embedding",
  "input_cost_per_mil_tokens": 0.008,
  "displayName": "Perplexity Embed Context v1 (0.6B)",
  "max_input_tokens": 32000,
  "available_providers": ["perplexity"]
}

Additional missing Perplexity embedding model

• pplx-embed-context-v1-4b — contextualized embedding, 2560 dimensions, 32K context, $0.05/M tokens

Verification checklist

• Cross-source: Model IDs confirmed on Perplexity pricing page and Embeddings quickstart
• Recent commits: Not covered by any recent commit to model_list.json
• ID format: Uses Perplexity's official model ID format as documented in API reference
• Existing issues: No existing issue covers Perplexity embedding models

Verification notes

Field	Source	Notes
Model IDs	Pricing page + Embeddings quickstart	Listed on both pages
Dimensions (1024/2560)	Embeddings quickstart	Documented for each model
Context (32K)	Embeddings quickstart	All models: 32K context
Pricing	Pricing page + Embeddings quickstart	Consistent across both sources
format: "openai"	Catalog convention	Perplexity uses OpenAI-compatible API
flavor: "embedding"	API endpoint	Uses /embeddings endpoint

Local files inspected

• packages/proxy/schema/model_list.json — grep for pplx-embed returns no matches
• Existing Perplexity entries: sonar, sonar-pro, sonar-reasoning, sonar-reasoning-pro (all chat models)

Source URLs

• https://docs.perplexity.ai/guides/pricing
• https://docs.perplexity.ai/docs/embeddings/quickstart

{
  "kind": "missing_model",
  "provider": "perplexity",
  "models": ["pplx-embed-v1-0.6b", "pplx-embed-v1-4b", "pplx-embed-context-v1-0.6b"],
  "status": "active",
  "model_specs": {
    "pplx-embed-v1-0.6b": {
      "format": "openai",
      "flavor": "embedding",
      "input_cost_per_mil_tokens": 0.004,
      "displayName": "Perplexity Embed v1 (0.6B)",
      "max_input_tokens": 32000,
      "available_providers": ["perplexity"]
    },
    "pplx-embed-v1-4b": {
      "format": "openai",
      "flavor": "embedding",
      "input_cost_per_mil_tokens": 0.03,
      "displayName": "Perplexity Embed v1 (4B)",
      "max_input_tokens": 32000,
      "available_providers": ["perplexity"]
    },
    "pplx-embed-context-v1-0.6b": {
      "format": "openai",
      "flavor": "embedding",
      "input_cost_per_mil_tokens": 0.008,
      "displayName": "Perplexity Embed Context v1 (0.6B)",
      "max_input_tokens": 32000,
      "available_providers": ["perplexity"]
    }
  },
  "source_urls": [
    "https://docs.perplexity.ai/guides/pricing",
    "https://docs.perplexity.ai/docs/embeddings/quickstart"
  ]
}

[github-actions]

Prepared catalog updates for pplx-embed-v1-0.6b, pplx-embed-v1-4b, pplx-embed-context-v1-0.6b. Added models: pplx-embed-v1-0.6b, pplx-embed-v1-4b, pplx-embed-context-v1-0.6b.

Verification sources: https://docs.perplexity.ai/guides/pricing, https://docs.perplexity.ai/docs/embeddings/quickstart
Verified metadata applied:

• pplx-embed-v1-0.6b: format=openai, flavor=embedding, displayName=Perplexity Embed v1 (0.6B), max_input_tokens=32000, max_output_tokens=n/a, pricing(input/output per 1M)=0.004/?, providers=perplexity
• pplx-embed-v1-4b: format=openai, flavor=embedding, displayName=Perplexity Embed v1 (4B), max_input_tokens=32000, max_output_tokens=n/a, pricing(input/output per 1M)=0.03/?, providers=perplexity
• pplx-embed-context-v1-0.6b: format=openai, flavor=embedding, displayName=Perplexity Embed Context v1 (0.6B), max_input_tokens=32000, max_output_tokens=n/a, pricing(input/output per 1M)=0.008/?, providers=perplexity

Opened #655 to apply the catalog update.