similar.dev-en-v2b-medium

Contract

• Output dimension: 1024 (float32)
• Modes: input_type=document (default) and input_type=query for asymmetric retrieval
• Recommended similarity: cosine
• Max input length: 20,000 characters per string (longer inputs are truncated at the end)
• Endpoint: POST https://api.similar.dev/v1/embeddings

Example request

curl -s https://api.similar.dev/v1/embeddings \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "similar.dev-en-v2b-medium",
    "input": ["Example sentence."],
    "input_type": "document"
  }'

MTEB reproduction

Benchmark reviewers and maintainers can request a usage-exempt eval key on the evaluation page. Use batch sizes of 8 or fewer strings per request when running long retrieval tasks.