OpenCode API endpoints for DeepSeek were [moved from
Anthropic-compatible to
OpenAI-compatible](https://github.com/anomalyco/opencode/pull/24500) and
DeepSeek requires interleaved reasoning enabled to work. I ran a
_"rename this variable to potato"_ test and I can confirm DeepSeek V4
Flash and Pro both work now 🎉
Some other OpenCode Go models were marked [on
models.dev](https://github.com/anomalyco/models.dev/tree/dev/providers/opencode-go/models)
as supporting `interleaved_reasoning` so they too got that enabled. Kimi
K2.5 and Kimi K2.6 continue to fail with
https://github.com/zed-industries/zed/issues/51743
(https://github.com/zed-industries/zed/pull/55085 seems to hint at this
being [an OpenCode
issue](https://github.com/zed-industries/zed/issues/51743#issuecomment-4336785765)?),
but all other models seem to work fine both with `interleaved_reasoning`
and without it 🤷 I assume it's better to have that turned on? Again, the
intersection of OpenAI Chat Completions API, different models, different
inference providers, how they all work together is something I know
nothing about!
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 Go: use correct DeepSeek endpoints
- OpenCode: add support for interleaved_reasoning
Leftovers after https://github.com/zed-industries/zed/pull/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
https://github.com/anomalyco/opencode/issues/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>
**TL;DR**: add support for OpenCode Go (flat-rate monthly subscription)
along the already-implemented OpenCode Zed (pay-as-you-go billing).
> [!WARNING]
> This code was written by LLMs, under the supervision of a so-called
developer that never wrote Rust profesionally and that spends more time
in Pages&Keynote than in an IDE.
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
## Background
OpenCode offers a few different ways to access models:
- **free access to 3 models**, with feedback and data used to improve
the model. These models use the OpenCode Zen API endpoints, but have
different usage limits (200 requests per 5 hours) and have a different
privacy policy. Some people disable or block the free models, some
people are super-excited to have access to LLMs for free, and some
people like using the free models to test new LLMs (at launch MiMo-V2
had 2 free weeks of usage, for example).
- **pay-as-you-go access to 30 models** as part of the [OpenCode
Zen](https://opencode.ai/zen) subscription. These models use the same
OpenCode Zen API endpoints.
- **flat-rate monthly access to 7 models** as part of the [OpenCode
Go](https://opencode.ai/go) subscription. These models use the OpenCode
Zen API endpoints with an extra `/go` appended to the path. There are
5-hour, weekly, and monthly usage limits and, additionally, users can
toggle a switch in the OpenCode Console to use Zen models with their
pay-as-you-go billing after the Go limits are hit.
There's also a currently-paused [OpenCode
Black](https://opencode.ai/black) flat-rate subscription with way higher
usage limits and with access to more models, with $100 and $200 monthly
plans.
The whole thing is a bit messy, but it's great value and highly reliable
LLM access!
<br>
https://github.com/zed-industries/zed/pull/49589 added support for
OpenCode Zen by implementing a new `opencode` provider. OpenCode Go
[could be used by overriding the API
URL](https://github.com/zed-industries/zed/pull/49589#issuecomment-4130300454),
but that is a terrible user experience: some models have to be manually
added, the model list always shows the 30-something OpenCode Zen models,
and free models cannot be used at all.
I was annoyed by the experience of using OpenCode Go with Zed and this
past week I had to test a bunch of LLMs and providers and harnesses, so
I took this on as a test case 🙂
## Implementation
This PR makes the OpenCode provider more general (not just for Zen) and
adds an `OpenCodeModelSubscription` concept which is then used to
implement support for OpenCode Go. The free models are also broken out
into their own subscription for a prettier model list.
For a better user experience, the different subscriptions can be enabled
or disabled, both in the settings file and in the UX:
<img width="434" height="176" alt="Screenshot showing the OpenCode
provider configuration, with the newly added toggles"
src="https://github.com/user-attachments/assets/3520e114-00c8-4794-84bf-35cd72d9c57e"
/>
The code was written by LLMs, but I do understand it and I did a bunch
of "manual" iterations and "manual" tweaks. Still, my Rust experience is
non-existent so **I won't feel offended if y'all reject this PR**! I did
consider alternatives (adding a new `opencode-go` provider and renaming
this to `opencode-zen`, for example, or adding support for custom API
URLs in OpenCode custom models which would've been the smallest code
change but a terrible user experience, and so on) but all alternatives
would have been, in my opinion, a worse user experience.
**Tests I did**:
- confirmed OpenCode Go models work as expected
- confirmed OpenCode Zen Free models work as expected
- confirmed I get an error when trying to use OpenCode Zen models since
I don't have that subscription
- confirmed the subcription toggles work as expected (model are
shown/hidden, settings file is updated)
**Notes**:
- this PR is best reviewed commit-by-commit. I did not create a separate
PR for the model updates to minimize delays
- my exeprience with Rust is roughly zero, but I tried to strike a
balance between idiomatic Rust and easy-to-read code
- users of the OpenCode provider might have to do some re-configuration
after this PR is merged since the model identifiers now include the
subscription, eg `claude-haiku-4-5` is now `zen/claude-haiku-4-5`. Since
this is a relatively new provider and the impact is small, I preffered
that rather than adding complex migration/mapping logic.
- does changing the provider name from "OpenCode Zen" to "OpenCode"
break anything for y'all at Zed?
- does changing the telemetry id from `"opencode/<model-id>"` to
`"opencode/<subscription>/<model-id>"` break anything for y'all at Zed?
---
Release Notes:
- OpenCode provider: add support for OpenCode Go
---------
Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>
<img width="767" height="428" alt="Screenshot 2026-04-16 at 11 29 13 AM"
src="https://github.com/user-attachments/assets/e8b450fa-aefc-4dec-a286-b211bd492011"
/>
Add Claude Opus 4.7 (`claude-opus-4-7`) to the anthropic, bedrock, and
opencode provider crates.
Key specs:
- 1M token context window
- 128k max output tokens
- Adaptive thinking support
- AWS Bedrock cross-region inference (global, US, EU, AU)
Release Notes:
- Added Claude Opus 4.7 as an available language model
Before you mark this PR as ready for review, make sure that you have:
- [x] Added a solid test coverage and/or screenshots from doing manual
testing
- [x] Done a self-review taking into account security and performance
aspects
- [x] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
Per Opencode's website:
> Zen gives you access to a curated set of AI models that OpenCode has
tested and benchmarked specifically for coding agents. No need to worry
about inconsistent performance and quality, use validated models that
work.
> - [x] Testing select models and consulting their teams
> - [x] Working with providers to ensure they're delivered properly
> - [x] Benchmarking all model-provider combinations we recommend
There are so many models available, but only a few work well with coding
agents. Most providers configure them differently with varying results.
The models under the Zen umbrella typically have a more reliable
token(s) per second speed with minimal outages. The opencode ecosystem
has improved my workflow if not many others' !
Release Notes:
- Added [Opencode Zen](https://opencode.ai/zen) to list of providers
---------
Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>
Co-authored-by: Bennet Bo Fenner <bennetbo@gmx.de>
