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[GH-ISSUE #13493] think tag #55409

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opened 2026-04-29 09:08:04 -05:00 by GiteaMirror · 5 comments
GiteaMirror commented 2026-04-29 09:08:04 -05:00
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Originally created by @chrisqianz on GitHub (Dec 16, 2025).
Original GitHub issue: https://github.com/ollama/ollama/issues/13493

What is the issue?

the new version think tag just remove , still with processing.

Relevant log output

>>> /set nothink
Set 'nothink' mode.
>>> what's timezone for Houston?
Thinking...
The user asks: "what's timezone for Houston?" They want to know the time 
zone for Houston. Likely the answer: Central Standard Time (CST), Central 
Daylight Time (CDT) during daylight saving. It's UTC-6 in winter, UTC-5 in 
summer. Provide details. Could mention Central Time Zone. Provide context. 
Should be concise but include nuance. Probably mention also that Houston 
is in the Central Time Zone, using CST (UTC-6) outside DST, and CDT 
(UTC-5) during DST. Also mention that DST changes usually from second 
Sunday in March to first Sunday in November. Also mention the 
abbreviation: CST/CDT. So the answer: Central Standard Time (CST), Central 
Daylight Time (CDT) when DST is observed. Provide UTC offset. That is all.
...done thinking.

**Houston, Texas** is in the **Central Time Zone (CT)**.

| Season | Standard abbreviation | UTC offset |
|--------|-----------------------|------------|
| Standard time (late fall–early spring) | **CST** – Central Standard Time

OS

Linux

GPU

Nvidia

CPU

Other

Ollama version

0.13.3

Originally created by @chrisqianz on GitHub (Dec 16, 2025). Original GitHub issue: https://github.com/ollama/ollama/issues/13493 ### What is the issue? the new version think tag just remove <think></think>, still with processing. ### Relevant log output ```shell >>> /set nothink Set 'nothink' mode. >>> what's timezone for Houston? Thinking... The user asks: "what's timezone for Houston?" They want to know the time zone for Houston. Likely the answer: Central Standard Time (CST), Central Daylight Time (CDT) during daylight saving. It's UTC-6 in winter, UTC-5 in summer. Provide details. Could mention Central Time Zone. Provide context. Should be concise but include nuance. Probably mention also that Houston is in the Central Time Zone, using CST (UTC-6) outside DST, and CDT (UTC-5) during DST. Also mention that DST changes usually from second Sunday in March to first Sunday in November. Also mention the abbreviation: CST/CDT. So the answer: Central Standard Time (CST), Central Daylight Time (CDT) when DST is observed. Provide UTC offset. That is all. ...done thinking. **Houston, Texas** is in the **Central Time Zone (CT)**. | Season | Standard abbreviation | UTC offset | |--------|-----------------------|------------| | Standard time (late fall–early spring) | **CST** – Central Standard Time ``` ### OS Linux ### GPU Nvidia ### CPU Other ### Ollama version 0.13.3
GiteaMirror added the bug label 2026-04-29 09:08:04 -05:00
GiteaMirror commented 2026-04-29 09:08:07 -05:00
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@rick-github commented on GitHub (Dec 16, 2025):

What model? Some models are not hybrid, meaning thinking cannot be disabled.

<!-- gh-comment-id:3658841294 --> @rick-github commented on GitHub (Dec 16, 2025): What model? Some models are not hybrid, meaning thinking cannot be disabled.
GiteaMirror commented 2026-04-29 09:08:08 -05:00
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@chrisqianz commented on GitHub (Dec 16, 2025):

gpt-oss and qwen3

<!-- gh-comment-id:3658940158 --> @chrisqianz commented on GitHub (Dec 16, 2025): gpt-oss and qwen3
GiteaMirror commented 2026-04-29 09:08:09 -05:00
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@rick-github commented on GitHub (Dec 16, 2025):

gpt-oss thinking cannot be disabled, but you can reduce it by setting the thinking level to low. If you want a non-thinking qwen3 model, use the instruct version.

$ ollama run gpt-oss:20b
>>> hello
Thinking...
We need to produce a friendly response. This is just "hello". The 
assistant should respond politely, perhaps ask how can help.
...done thinking.

Hello! 👋 How can I help you today?

>>> /set think low
Set 'think' mode to 'low'.
>>> hello
Thinking...
User repeats hello. We should respond politely.
...done thinking.

Hey there! How can I help you today?

$ ollama run qwen3:4b
>>> what's timezone for Houston?
Thinking...
Okay, the user is asking about the timezone for Houston. Let me start by recalling that Houston is in Texas, USA. I remember that most of the US uses either Eastern Time 
...
I think that's all. Make sure it's clear and concise so the user doesn't get confused.
...done thinking.

Houston, Texas is in the **Central Time Zone**. Here are the key details:
...
```console
$ ollama run qwen3:4b-instruct
>>> what's timezone for Houston?
Houston, Texas is in the **Central Time Zone**.

- **Central Standard Time (CST):** UTC−6 (during standard time)
- **Central Daylight Time (CDT):** UTC−5 (during daylight saving time, which runs from the second Sunday in March to the first Sunday in November)

So, Houston observes **Central Time**, switching to **Daylight Saving Time** in the spring and reverting to standard time in the fall.

As of now (2024), Houston is on **Central Daylight Time (CDT)**, which is **UTC−5**.
<!-- gh-comment-id:3658966500 --> @rick-github commented on GitHub (Dec 16, 2025): gpt-oss thinking cannot be disabled, but you can reduce it by setting the thinking level to `low`. If you want a non-thinking qwen3 model, use the instruct version. ```console $ ollama run gpt-oss:20b >>> hello Thinking... We need to produce a friendly response. This is just "hello". The assistant should respond politely, perhaps ask how can help. ...done thinking. Hello! 👋 How can I help you today? >>> /set think low Set 'think' mode to 'low'. >>> hello Thinking... User repeats hello. We should respond politely. ...done thinking. Hey there! How can I help you today? ``` ```console $ ollama run qwen3:4b >>> what's timezone for Houston? Thinking... Okay, the user is asking about the timezone for Houston. Let me start by recalling that Houston is in Texas, USA. I remember that most of the US uses either Eastern Time ... I think that's all. Make sure it's clear and concise so the user doesn't get confused. ...done thinking. Houston, Texas is in the **Central Time Zone**. Here are the key details: ... ```console $ ollama run qwen3:4b-instruct >>> what's timezone for Houston? Houston, Texas is in the **Central Time Zone**. - **Central Standard Time (CST):** UTC−6 (during standard time) - **Central Daylight Time (CDT):** UTC−5 (during daylight saving time, which runs from the second Sunday in March to the first Sunday in November) So, Houston observes **Central Time**, switching to **Daylight Saving Time** in the spring and reverting to standard time in the fall. As of now (2024), Houston is on **Central Daylight Time (CDT)**, which is **UTC−5**. ```
GiteaMirror commented 2026-04-29 09:08:10 -05:00
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@chrisqianz commented on GitHub (Dec 16, 2025):

if cannot, better return with think tag, that i will remove it with code for output. like before old version.

<!-- gh-comment-id:3659020118 --> @chrisqianz commented on GitHub (Dec 16, 2025): if cannot, better return with think tag, that i will remove it with code for output. like before old version.
GiteaMirror commented 2026-04-29 09:08:10 -05:00
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@rick-github commented on GitHub (Dec 16, 2025):

Use a thinking model for thinking output. Use a non-thinking model for non-thinking output.

<!-- gh-comment-id:3659027589 --> @rick-github commented on GitHub (Dec 16, 2025): Use a thinking model for thinking output. Use a non-thinking model for non-thinking output.
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