Quasar 438B: Europe's Leading AI Model

Quasar 438B is our flagship reasoning model, built for enterprise-scale agents and coding. It is the first large model Multiverse Computing has released, it runs in English and Spanish, and it scores 43 on the Artificial Analysis Intelligence Index, the highest result of any European model in the field.

The Intelligence Index v4.1.1 combines nine evaluations: GDPval-AA v2, τ³-Banking, Terminal-Bench v2.1, SciCode, Humanity's Last Exam, GPQA Diamond, CritPt, AA-Omniscience and AA-LCR. Quasar's 43 puts it ahead of Mistral Medium 3.5 at 30, NVIDIA Nemotron 3 Ultra at 38 and Inkling at 42, in a field led by Claude Opus 5 at 63.

Quasar is not only intelligent, it is also fast. It returns 500 tokens, thinking time included, in 15.3 seconds. Only three models in the comparison are faster, and only one of those, Gemini 3.7 Flash, scores higher on the index. Of the models that do outscore Quasar, only two answer in under 25 seconds. The rest take between 38 and 156.

Multiverse Computing has built its position on making AI more efficient and deployable. Quasar brings that work into the 400B-plus parameter class: a reasoning model for multi-step tasks that need planning, tool use, code execution and large context, without the latency that class normally carries.

The model is available through the CompactifAI API, so teams can test it without standing up infrastructure.

The highest-scoring European model

Figure 1. Artificial Analysis Intelligence Index v4.1.1, a composite of nine evaluations. Higher is better.

Quasar scores 43 on the composite index. That is 13 points ahead of Mistral Medium 3.5 and 5 ahead of Nemotron 3 Ultra, which carries 112 billion more parameters.

Frontier-class speed

Figure 2. End-to-end response time: seconds to output 500 tokens, including reasoning time. Lower is better.

Quasar completes a 500-token response in 15.3 seconds. The three faster models in the comparison are Nemotron 3.5 Lightning at 9.4s, which scores 24 on the index, Gemini 3.5 Flash-Lite at 10.8s, which scores 37, and Gemini 3.7 Flash at 11.5s, which scores 56. Only the last of those is both faster and more capable.

Read it the other way and the gap is wider. Quasar scores 43 and takes 15.3 seconds. Mistral Medium 3.5 scores 30 and takes 18.8 seconds. Nemotron 3 Ultra scores 36 and takes 25.7 seconds, Inkling scores 42 and needs 48.3 secods, more than double than Quasar 438B.

Against Mistral Medium 3.5 the comparison runs one way on both axes: Quasar scores higher (43 against 30) and answers faster (15.3s against 18.8s).

Long-context reasoning

Figure 3. AA-LCR score. Higher is better.

Quasar scores 75.0 on AA-LCR, which tests the ability to extract, connect and reason over information spread across long documents. That is level with Grok 4.6 (high) at 75.0, and within a point of Claude Opus 5 at 75.7 and Qwen3.8 2.4T A95B at 75.3. It leads Nemotron 3 Ultra by 4.0 points and Mistral Medium 3.5 by 9.7.

Long-context handling is what enterprise research, document analysis and agentic workflows are built on, and it is where Quasar comes closest to the frontier group.

Agentic coding and terminal work

Figure 4. Terminal-Bench v2.1 score. Higher is better.

Quasar scores 69.3 on Terminal-Bench v2.1, which puts agents to work in real terminal environments. It leads Mistral Medium 3.5 by 18.7 points and Nemotron 3 Ultra by 15.4, and trails the frontier group led by Claude Opus 5 at 89.1. This is the evaluation with the most headroom for Quasar, and it is where the next round of work is aimed.

The four results in one view

Table 1. Quasar 438B on the four supplied Artificial Analysis charts. Source: Artificial Analysis.

Built for enterprise-scale agents and coding

Quasar is built for organizations running software development agents, technical copilots, research systems and workflow automation. The Terminal-Bench and long-context results support agents that have to hold context, coordinate actions and work through multi-step tasks. The response time keeps those loops fast enough to sit inside an interactive product rather than a batch job.