Bug: endpoint openrouter fails because the output is missing Fields[created, owned_by]

Description

Got redirected here from this SpeakGPT issue.

This seems to happen when the function openAI.models is called and because the outputs do not contain "created" nor "owned_by" keys.

Also, if you don't mind me asking, do you accept bounties for quick fix?

Here's the error message: Fields [created, owned_by] are required for type with serial name 'com.aallam.openai.api.model.Model', but they were missing

Full log from the SpeakGPT crash:

Expand

``` ===== BEGIN OF CRASH ===== m2.j: Illegal input: Fields [created, owned_by] are required for type with serial name 'com.aallam.openai.api.model.Model', but they were missing at path: $.data[0] at w2.d.a(Unknown Source:77) at w2.d.e(Unknown Source:122) at w2.b.m(Unknown Source:12) at x8.a.g(Unknown Source:5) at n9.k0.run(Unknown Source:101) at android.os.Handler.handleCallback(Handler.java:959) at android.os.Handler.dispatchMessage(Handler.java:100) at android.os.Looper.loopOnce(Looper.java:232) at android.os.Looper.loop(Looper.java:317) at android.app.ActivityThread.main(ActivityThread.java:8532) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552) at com.android.internal.os.ExecInit.main(ExecInit.java:50) at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method) at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:359) Suppressed: r9.f: [p1{Cancelling}@c04cf55, Dispatchers.Main] Caused by: u7.f: Illegal input: Fields [created, owned_by] are required for type with serial name 'com.aallam.openai.api.model.Model', but they were missing at path: $.data[0] at v7.j.a(Unknown Source:316) at u7.b.a(Unknown Source:178) at p9.e.a(Unknown Source:185) at u7.c.a(Unknown Source:49) at j9.k.e(Unknown Source:73) at d5.f0.a(Unknown Source:82) at i7.g.b(Unknown Source:245) at a7.b.m(Unknown Source:365) at a7.b.h(Unknown Source:52) at b8.m.f(Unknown Source:35) at b8.m.d(Unknown Source:27) at a7.d.m(Unknown Source:678) at a7.d.h(Unknown Source:132) at b8.m.f(Unknown Source:35) at b8.m.d(Unknown Source:27) at b8.m.e(Unknown Source:2) at a7.b.m(Unknown Source:517) at a7.b.h(Unknown Source:106) at b8.m.f(Unknown Source:35) at b8.m.d(Unknown Source:27) at b8.m.a(Unknown Source:18) at b8.e.a(Unknown Source:177) at b7.c.a(Unknown Source:177) at w2.d.e(Unknown Source:106) at w2.b.m(Unknown Source:12) at x8.a.g(Unknown Source:5) at n9.k0.run(Unknown Source:109) ... 10 more Caused by: w9.b: Fields [created, owned_by] are required for type with serial name 'com.aallam.openai.api.model.Model', but they were missing at path: $.data[0] at ca.g0.y(Unknown Source:122) at ca.g0.f(Unknown Source:40) at aa.s.k(Unknown Source:6) at aa.a.j(Unknown Source:29) at aa.a.a(Unknown Source:0) at ca.g0.y(Unknown Source:66) at ca.g0.f(Unknown Source:40) at l2.d.a(Unknown Source:100) at ca.g0.y(Unknown Source:66) at ba.b.a(Unknown Source:19) at v7.j.a(Unknown Source:204) ... 36 more Caused by: w9.b: Fields [created, owned_by] are required for type with serial name 'com.aallam.openai.api.model.Model', but they were missing at aa.c1.h(Unknown Source:104) at r2.c.(Unknown Source:27) at r2.a.a(Unknown Source:96) at ca.g0.y(Unknown Source:66) ... 46 more ===== END OF CRASH ===== ```

Steps to Reproduce

Set the url to https://openrouter.ai/api/v1/
Call openai.models()
Notice the error

Environment

openai-kotlin version: 3.7.1
Kotlin version: Don't know
OS: Android

Now you have all field in Model.kt object non-nullable. I propose to perform the following changes to Model.kt file:

package com.aallam.openai.api.model

import kotlinx.serialization.SerialName
import kotlinx.serialization.Serializable

/**
 * OpenAI's Model.
 */
@Serializable
public data class Model(
    @SerialName("id") public val id: ModelId,
    @SerialName("created") public val created: Long?, /* make the following parameter nullable */
    @SerialName("owned_by") public val ownedBy: String?, /* make the following parameter nullable */
    @SerialName("permission") public val permission: List<ModelPermission>? = null,
)

In context of smart assistant I think params owned_by and create are not required and it can be made optional. For examle the OpenRouter (https://openrouter.ai/docs#models)(OpenAI API standard) which is a revolution among LLM providers uses the following JSON object of model:

{
    "id": "openrouter/auto",
    "name": "Auto (best for prompt)",
    "description": "Depending on their size, subject, and complexity, your prompts will be sent to [Mistral Large](/models/mistralai/mistral-large) or [GPT-4 Turbo](/models/openai/gpt-4-turbo).  To see which model was used, visit [Activity](/activity).",
    "pricing": {
        "prompt": "-1",
        "completion": "-1",
        "request": "-1",
        "image": "-1"
    },
    "context_length": 128000,
    "architecture": {
        "modality": "text",
        "tokenizer": "Router",
        "instruct_type": null
    },
    "top_provider": {
        "max_completion_tokens": null,
        "is_moderated": false
    },
    "per_request_limits": null
}

So this object does not have owned_by and created fields. When we use https://openrouter.ai/api/v1/ everythong works except model list.

P.S: The temporary solution for me is to send bare HTTP request, but I would like to use the same library and engine to provide user with best experience.

aallam / openai-kotlin