Provider deepseek-chat is answered by deepseek-flash
We request deepseek-chat; every response we record says it was served by deepseek-flash.
Nothing errors. If you pinned this name to keep behaviour stable, it no longer does that: whenever the provider
updates deepseek-flash, your requests change with it while your code still says deepseek-chat.
What the provider said · 2026-04-24DeepSeek announced that deepseek-chat would be discontinued on 2026-07-24 and that it points to the non-thinking mode of V4 Flash. The Flash model behind it has been upgraded since (latest: V4.1-Flash-1017, 2026-10-17).
Source
What we send"model": "deepseek-chat"
What comes back"model": "deepseek-flash"
Raw data for DeepSeek Chat (legacy name) →
Observation 5 of 9 models get “Arithmetic” wrong
Same question, one correct answer, temperature 0. 4 models answer it correctly; these do not.
If your pipeline depends on this kind of task, the model you pick matters more than the price.
Correct · DeepSeek Flash and 3 more2953.72
Observation 2 of 10 models get “Code extraction” wrong
Same question, one correct answer, temperature 0. 8 models answer it correctly; these do not.
If your pipeline depends on this kind of task, the model you pick matters more than the price.
Correct · GPT-5.4 nano and 7 more4120-ADM
GPT-OSS 120B (Groq)Could you please provide the text or document that contains the account code you’d like extracted?
GPT-OSS 20B (Groq)I’m sorry, but I don’t see the text that contains the account code. Could you please provide it?
Observation 1 of 10 models get “Yes / no” wrong
Same question, one correct answer, temperature 0. 9 models answer it correctly; these do not.
If your pipeline depends on this kind of task, the model you pick matters more than the price.
Correct · GPT-5.4 nano and 8 moreyes
Observation 1 of 10 models get “Percentage” wrong
Same question, one correct answer, temperature 0. 9 models answer it correctly; these do not.
If your pipeline depends on this kind of task, the model you pick matters more than the price.
Correct · GPT-5.4 nano and 8 more18
Observation GPT-OSS 20B (Groq) gave different answers to “Code extraction”
Same question, same settings, temperature 0 — yet the answer moved. With 3 of
5 runs this is not a confirmed change yet; we are watching whether it settles.
Before · 2026-10-17 12:45 UTCI’m not sure which account code you’re referring to. Could you please provide the text or details that contain the account code?
Now · since 2026-10-17 12:50 UTCI’m sorry, but I don’t see the text that contains the account code. Could you please provide it?
Raw data for GPT-OSS 20B (Groq) →
Observation Qwen 3.8 27B (Groq) gave different answers to “Arithmetic”
Same question, same settings, temperature 0 — yet the answer moved. With 3 of
5 runs this is not a confirmed change yet; we are watching whether it settles.
Before · 2026-10-17 12:45 UTC295.42
Now · since 2026-10-17 12:50 UTC296.58
Raw data for Qwen 3.8 27B (Groq) →