fix: pass encoding_format='float' in OpenAI embeddings for proxy compatibility#4058
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whysosaket merged 1 commit intomem0ai:mainfrom Mar 18, 2026
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…atibility (mem0ai#4057) The OpenAI Python SDK defaults to encoding_format='base64' when not specified, which breaks OpenAI-compatible proxies (OpenRouter, LiteLLM, vLLM, etc.) that don't support base64 decoding. This causes intermittent 'ValueError: No embedding data received' errors for users pointing openai_base_url at non-OpenAI providers. Explicitly passing encoding_format='float' ensures compatibility with all providers while producing identical results.
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Hi! Just checking in on this PR. Let me know if there's anything you'd like me to change or any feedback on the approach. Happy to adjust! |
kartik-mem0
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thank you for your contribution @AtharvaJaiswal005
the solution lgtm!
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whysosaket
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Mar 18, 2026
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Closes #4057
Summary
encoding_format="float"toembeddings.create()call inmem0/embeddings/openai.pyencoding_format="base64"when not specified (confirmed by OpenAI), which breaks OpenAI-compatible proxies (OpenRouter, LiteLLM, vLLM, Ollama) that don't support base64 decodingValueError: No embedding data receivederrors when usingopenai_base_urlwith non-OpenAI providersChanges
mem0/embeddings/openai.py- addedencoding_format="float"to theembeddings.create()calltests/embeddings/test_openai_embeddings.py- updated existing test assertions and added a new test verifying encoding format is always passedTest plan
encoding_format="float"works with all providers including direct OpenAI API