opencode: Model updates + thinking levels (#54880) (cherry-pick to preview)#55772
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Leftovers after #53651 Updated models: - **Zen**: GPT 5.5 and GPT 5.5 Pro - not tested because I don't have a Zen subscription and I stubbornly refuse to get one - **Go**: DeepSeek V4 Pro and DeepSeek V4 Flash - failing due to anomalyco/opencode#24224 - **Go**: MiMo V2.5 and MiMo V2.5 Pro - tested, confirmed working - **Free**: Ling 2.6 Flash, [available for "a limited time"](https://x.com/opencode/status/2046717718028513694) - tested, confirmed working - **Free**: Hy3 Preview, [available until May 8](https://x.com/opencode/status/2047328981435756824) - tested, confirmed working When testing the new models and comparing with OpenCode CLI, I realized the [variants](https://opencode.ai/docs/models/#built-in-variants)/thinking effort configuration was not supported by the Zed Agent implementation. I added that for OpenCode Go models, after manually checking what each model supports in OpenCode. Reasoning levels and everything seems to work (UI looks good, model works) but I have no idea how to specifically test reasoning levels without doing a full benchmark 🤷 I did not add the same thing for OpenCode Zen models because I could not figure out a way to get the supported variants. @benbrandt let me know if you want me to take this out of this PR and to keep just the model updates! Self-Review Checklist: - [x] I've reviewed my own diff for quality, security, and reliability - [x] Unsafe blocks (if any) have justifying comments - [x] The content is consistent with the [UI/UX checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist) - [ ] Tests cover the new/changed behavior - [x] Performance impact has been considered and is acceptable Release Notes: - OpenCode: add new models (GPT 5.5, DeepSeek V4, MiMo V2.5, Ling 2.6, Hy3) - OpenCode Go: add support for configurable reasoning effort levels --------- Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>
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Cherry-pick of #54880 to preview
Leftovers after #53651
Updated models:
Zen subscription and I stubbornly refuse to get one
[OpenCode Go] deepseek-v4-pro Anthropic proxy tool format broken: tools[0].function missing name anomalyco/opencode#24224
time" - tested,
confirmed working
8 - tested,
confirmed working
When testing the new models and comparing with OpenCode CLI, I realized
the
variants/thinking
effort configuration was not supported by the Zed Agent implementation.
I added that for OpenCode Go models, after manually checking what each
model supports in OpenCode. Reasoning levels and everything seems to
work (UI looks good, model works) but I have no idea how to specifically
test reasoning levels without doing a full benchmark 🤷
I did not add the same thing for OpenCode Zen models because I could not
figure out a way to get the supported variants.
@benbrandt let me know if you want me to take this out of this PR and to
keep just the model updates!
Self-Review Checklist:
checklist
Release Notes:
Hy3)
Co-authored-by: Ben Brandt benjamin.j.brandt@gmail.com