github-starred/ollama
2
0
Fork 0
mirror of https://github.com/ollama/ollama.git synced 2026-05-07 00:22:43 -05:00
Code Issues 14.5k Packages Projects Releases 120 Wiki Activity

[GH-ISSUE #9480] Add system prompt override to chat #68232

New Issue
Closed
opened 2026-05-04 12:57:29 -05:00 by GiteaMirror · 4 comments
GiteaMirror commented 2026-05-04 12:57:29 -05:00
Owner
Copy Link

Originally created by @jbutlerdev on GitHub (Mar 3, 2025).
Original GitHub issue: https://github.com/ollama/ollama/issues/9480

Similar to #296

It would be nice to be able to override the system prompt when sending a Chat Request and not just a generate

Originally created by @jbutlerdev on GitHub (Mar 3, 2025). Original GitHub issue: https://github.com/ollama/ollama/issues/9480 Similar to #296 It would be nice to be able to override the system prompt when sending a Chat Request and not just a generate
GiteaMirror added the feature request label 2026-05-04 12:57:29 -05:00
GiteaMirror commented 2026-05-04 12:57:32 -05:00
Author
Owner
Copy Link

@rick-github commented on GitHub (Mar 3, 2025):

You can.

$ curl -s localhost:11434/api/chat -d '{
  "model":"qwen2.5:7b",
  "messages":[
    {"role":"system","content":"Talk like a pirate"},
    {"role":"user","content":"hello"}
  ],
  "stream":false}' | jq .message.content
"Ahoy there, matey! Welcome aboard me ship. How be ye doin'? Be ye lookin' to cross the seven seas or perhaps seek some treasure? Ye needna worry 'bout them parrots; they just talk too much sometimes. So, what wind be blowin' your sails today?"
<!-- gh-comment-id:2695231635 --> @rick-github commented on GitHub (Mar 3, 2025): You can. ```console $ curl -s localhost:11434/api/chat -d '{ "model":"qwen2.5:7b", "messages":[ {"role":"system","content":"Talk like a pirate"}, {"role":"user","content":"hello"} ], "stream":false}' | jq .message.content "Ahoy there, matey! Welcome aboard me ship. How be ye doin'? Be ye lookin' to cross the seven seas or perhaps seek some treasure? Ye needna worry 'bout them parrots; they just talk too much sometimes. So, what wind be blowin' your sails today?" ```
GiteaMirror commented 2026-05-04 12:57:33 -05:00
Author
Owner
Copy Link

@jbutlerdev commented on GitHub (Mar 3, 2025):

My understanding was that a system message was handled a little differently than the actual system prompt. For instance will this override the original system prompt specified in the modelfile?

<!-- gh-comment-id:2695275156 --> @jbutlerdev commented on GitHub (Mar 3, 2025): My understanding was that a system message was handled a little differently than the actual system prompt. For instance will this override the original system prompt specified in the modelfile?
GiteaMirror commented 2026-05-04 12:57:34 -05:00
Author
Owner
Copy Link

@rick-github commented on GitHub (Mar 3, 2025):

For instance will this override the original system prompt specified in the modelfile?

Yes. You can verify this by setting OLLAMA_DEBUG=1 in the server environment and search the log file for "chat request". The processed prompt will be recorded and should show the system prompt from messages in place of the default system prompt for the model.

<!-- gh-comment-id:2695283463 --> @rick-github commented on GitHub (Mar 3, 2025): > For instance will this override the original system prompt specified in the modelfile? Yes. You can verify this by setting `OLLAMA_DEBUG=1` in the server environment and search the [log file](https://github.com/ollama/ollama/blob/main/docs/troubleshooting.md#how-to-troubleshoot-issues) for "chat request". The processed prompt will be recorded and should show the system prompt from `messages` in place of the default system prompt for the model.
GiteaMirror commented 2026-05-04 12:57:35 -05:00
Author
Owner
Copy Link

@jbutlerdev commented on GitHub (Mar 3, 2025):

Oh, dang. Sorry for missing that. You can obviously close this then.

<!-- gh-comment-id:2695300066 --> @jbutlerdev commented on GitHub (Mar 3, 2025): Oh, dang. Sorry for missing that. You can obviously close this then.
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
amd
api
app
bug
build
cli
cloud
compatibility
context-length
create
docker
documentation
embeddings
feature request
feedback wanted
good first issue
gpt-oss
gpu
harmony
help wanted
image
install
intel
js
launch
linux
macos
memory
mlx
model
needs more info
networking
nvidia
ollama.com
performance
pull-request
Mirrored from GitHub Pull Request
 python
question
registry
rendering
thinking
tools
top
vulkan
windows
wsl
No Label feature request
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
GiteaMirror ninjasurge
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: github-starred/ollama#68232
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?