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deepseek v4 (official provider) can fail due to missing reasoning_content #24802

Closed as duplicate
Closed as duplicate
deepseek v4 (official provider) can fail due to missing reasoning_content#24802
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rekram1-node
Labels
bugSomething isn't workingcoreAnything pertaining to core functionality of the application (opencode server stuff)

Description

@karuboniru
karuboniru
opened on Apr 28, 2026

Description

session fails with The reasoning_content in the thinking mode must be passed back to the API. ramdomly and can't continue.

Related OpenAI API payload is: https://gist.github.com/karuboniru/51d2295c6dd66351b4df500876e9fbf1

Plugins

N/A

OpenCode version

1.14.28

Steps to reproduce

  1. do a complex job with deepseek with OpenAI compatable API endpoint
  2. wait long enough, you'll see error: The reasoning_content in the thinking mode must be passed back to the API.

Screenshot and/or share link

https://opncd.ai/share/3lV8UbeP

Operating System

Fedora 44

Terminal

ptyxis

Activity

  1. karuboniru
    added
    bugSomething isn't working
    on Apr 28, 2026
  2. github-actions
    assigned
    rekram1-node
    on Apr 28, 2026
  3. github-actions
    added
    coreAnything pertaining to core functionality of the application (opencode server stuff)
    on Apr 28, 2026

  4. github-actions commented on Apr 28, 2026

    @github-actions
    github-actionsBot
    on Apr 28, 2026 – with GitHub Actions
    Contributor

    This issue might be a duplicate of existing issues. Please check:

  5. karuboniru
    closed this as a duplicateof DeepSeek thinking mode: reasoning_content not passed back for tool call turns, causing 400 errors #24722 on Apr 28, 2026

  6. rekram1-node commented on Apr 28, 2026

    @rekram1-node
    rekram1-node
    on Apr 28, 2026
    Contributor

    @karuboniru you say "official provider" but your session is with cloudflare? Soo not the official provider right...

  7. karuboniru commented on Apr 29, 2026

    @karuboniru
    karuboniru
    on Apr 29, 2026
    Author

    @rekram1-node its just a proxy (AI gateway mode, which passes the payload to deepseek but enables me to capture the json)

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