JetBrains
2 models across 2 families · Latest: Mellum2 12B (2026-06)
Developer tools company building code-specialized Mellum models.
JetBrains's portfolio covers 2 active models across 2 current families, spanning coding, rag, and agents. Open a model detail page to compare provider routes and sourced benchmarks.
Covers 5 workload areas across 2 active tracked models; last verified 2026-06-29.
Use it for
- Teams evaluating coding, rag, and agents across this lab's releases
- Comparing model families before committing to a flagship
- Migration and pricing follow-ups across 2 tracked models
Do not use it for
- Choosing a hosting provider without opening a model page for price ladders
Active models
2
Current models from this lab, excluding deprecated ones
Active families
2
Current model families from this lab
Open catalog
2 open
2 open source / 0 open weights
Lowest output price
Not tracked
No provider output pricing linked yet
Latest dated release
2026-06-01
Mellum2 12B
Freshness
2026-06-29
Researched 60d ago
Information
Release cadence
- Dated releases
- 2
- Latest model
- Mellum2 12B
- Latest date
- 2026-06-01
Where this lab wins
- Coding: 2 tracked models with SWE-bench / HumanEval-style scores.
- RAG: 1 tracked model with ruler / needle retrieval benchmarks.
- Agentic: 1 tracked model with BFCL, tau-bench, and SWE-bench tool-use coverage.
- Long-context: 1 tracked model with context-token or InfiniteBench-class signal.
Flagship quality / price signal
- Flagship
- Mellum 4B
- Selection source
- Best sourced coding Q/$
- Coding grade
- unknown
- Benchmark / output price
- Not enough sourced benchmark and price coverage
About
JetBrains is the software tools company behind IntelliJ IDEA, PyCharm, WebStorm, Kotlin, and JetBrains AI. Its Mellum model line focuses on code-specialized language models for IDE completion, software engineering workflows, and developer tooling.
Featured models
| Model | Released | Context | Input price ($/1M) | Output price ($/1M) | License | Openness |
|---|---|---|---|---|---|---|
| Mellum2 12B | 2026-06-01 | 131k | - | - | Apache 2.0 | Open source |
| Mellum 4B | 2025-04-30 | 8k | - | - | Apache 2.0 | Open source |
Model families
Recent releases
- Mellum2 12B- 2026-06-01
- Mellum 4B- 2025-04-30
Explore related pages
Last reviewed: 2026-06-29. Data sourced from public lab announcements and provider documentation.