Fix: Make CompletionTokensDetails properties nullable

[epasquier-76]

AudioTokens and ReasoningTokens in CompletionTokensDetails can be null according to OpenAI API responses. This change makes these properties nullable (int?) to prevent JSON deserialization errors when the API returns null values.

Fixes issue: The JSON value could not be converted to System.Int32.
Path: $.usage.completion_tokens_details.audio_tokens

[epasquier-76]

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[epasquier-76]

@dotnet-policy-service agree company="Orange Business" Le mer. 10 déc. 2025 à 13:34, dotnet-policy-service[bot] < ***@***.***> a écrit :

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[kayhantolga]

Hi, thanks for contributing. Could you share the link to the documentation page, or leave a simple example I can test?

[epasquier-76]

Hi, I don't have any documentation that would say that we must have optional values for audio token for some LLM, or on the contrary stating that all LLM that want to claim OpenAI compatibility should send non-empty values. All I can say is that I'm using Orange's own LiteLLM platform, to access many instances of LLM (OpenAI up to GPT5.1, Gemini up to 2.5, Claude Sonnet up to 4.5, for now, and many smaller others). They are not the public ones. I cannot guarantee that they are 100% the same as the ones available publicly, but I doubt very much that Orange changed anything on the LLM level. It could be possible they changed something at LiteLLM level. That said, what about the problem I experienced and how I fixed it : - It started a few months ago, with the arrival of Gemini 2.5 (pro/flash) on our platform. While I could use those new LLM with tools like CLINE, I couldn't with my own tools built on your lib. The library would consistently raise an exception complaining about missing fields in the answer. - It evolved at some point when practically all Gemini versions were facing the same issue. Older models (1.5 familly) were deprecated and decommissioned, Gemini 2 probably updated or LiteLLM config changed, so that it would too raise the problem (not having it before) I could no longer wait for a fix on your side nor investigate the real cause on Orange side and very unlikely be able to make them change their response (I'm only working for a subsidiary of this big group). Besides, it seemed legitimate that a response for text input & generation would not REQUIRE any audio token count. So I put myself to investigate your code and see how much effort it would represent to fix it and use at least temporarily a fixed version in my application. Which I did and it represents such a trivial fix that it was clear I should pass it on to your team. Best regards here is my professional signature, and email if you want to follow up at a professional level [image: image.png] Emmanuel PASQUIER | Architecte Logiciel *Orange <https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fannuaire.sso.infra.ftgroup%2Fentities%2Fou%3DOrange%2Cou%3Dentities&data=05%7C01%7Cemmanuel.pasquier%40orange.com%7C7ebcc3b9e10c40f257c408db6b153e3d%7C90c7a20af34b40bfbc48b9253b6f5d20%7C0%7C0%7C638221511846266185%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=6WC28B4S2wt6FcGuHezGcTzjHZSG4WzUuTgPL8gqepY%3D&reserved=0>* / *OBS SA <https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fannuaire.sso.infra.ftgroup%2Fentities%2Fou%3DOBS%2520SA%2Cou%3DOGSB%2Cou%3DSCE%2Cou%3DOBS%2Cou%3DOrange%2Cou%3Dentities&data=05%7C01%7Cemmanuel.pasquier%40orange.com%7C7ebcc3b9e10c40f257c408db6b153e3d%7C90c7a20af34b40bfbc48b9253b6f5d20%7C0%7C0%7C638221511846422384%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=3xaEmHzkppvrIAWLIazHkpQLc7dOf4yErKqV3JkeB0w%3D&reserved=0>* / CMS FR / *UNITI <https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fannuaire.sso.infra.ftgroup%2Fentities%2Fou%3DDSG%2Cou%3DOBS%2520SA%2Cou%3DOGSB%2Cou%3DSCE%2Cou%3DOBS%2Cou%3DOrange%2Cou%3Dentities&data=05%7C01%7Cemmanuel.pasquier%40orange.com%7C7ebcc3b9e10c40f257c408db6b153e3d%7C90c7a20af34b40bfbc48b9253b6f5d20%7C0%7C0%7C638221511846422384%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=GSCRZQSyf4Wml2ZNIc4uRL5L3w2ql2hvMrE2JgaDig4%3D&reserved=0>* / DTRI / DP *Mail :* ***@***.*** Orange Business Services - 13 Quai Gailleton - 69002 Lyon Le jeu. 11 déc. 2025 à 21:05, Tolga Kayhan ***@***.***> a écrit :

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*kayhantolga* left a comment (betalgo/openai#767) <#767 (comment)> Hi, thanks for contributing. Could you share the link to the documentation page, or leave a simple example I can test? — Reply to this email directly, view it on GitHub <#767 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BOQ2DWKXVQCWXSCHWXPRPH34BHFANAVCNFSM6AAAAACOTQWPVCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTMNBTGU4TAMRTGA> . You are receiving this because you were mentioned.Message ID: ***@***.***>