Together AI has launched Together Link, a way to use open-source coding models inside tools developers already use, including Claude Code, Claude Desktop and Codex. Its pitch is simple: let the harness choose a model for the task, then show what that choice costs.
Watch Desk analysis
What happened
Together Link integrates models including Kimi K3, GLM 5.3 and DeepSeek V4.1 into existing developer environments. Together AI says its automatic routing sends routine work to faster, lower-cost models and more complex tasks to frontier-capable models. The service uses developers’ existing Together API keys, and a session tracker compares actual costs with closed alternatives such as Opus 5.5, according to the company’s announcement.
Why it matters
Developers need not choose between staying in a familiar coding tool and trying open models. Together Link aims to make those models available in the same workflow, while routing and cost tracking offer a way to compare the trade-offs without turning model selection into another full-time job.
The useful question is whether the routing works well enough to earn trust. A lower-cost model is no bargain if it struggles with the task, and a cost comparison is only helpful if the work being compared is genuinely like for like.
Our read
This is a practical bridge between open models and established coding tools, not a new model launch. The appealing part is the combination of automatic routing and per-session cost comparison. Developers should treat the tracker as a prompt to test their own workloads, not as proof that every task will be cheaper or just as good.
What to watch
- Which models and developer environments are supported in practice.
- Whether routing can be inspected or adjusted by users.
- How Together Link’s cost comparisons account for differences in task quality and output.
Discussion spark: Would you let an automatic router choose between open and closed models for coding work, or would you rather pick the model yourself even if that means more time and cost?
Sources and evidence
- Together Link: open models in the harness you already use. Start with one command today. (5 October 2026, 15:34 UTC)
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