Quasar 438B
Quasar 438B by Multiverse Computing is Europe's leading reasoning model, built for enterprise agents and coding with long-context reasoning and fast
Model Overview
Capabilities, design details, and architectural traits
Quasar 438B - Europe's leading reasoning model
Quasar 438B is the flagship reasoning model from Multiverse Computing, a company best known for making AI more efficient and deployable. It is built for enterprise-scale agents and coding.
| Trait | Detail |
|---|---|
| Positioning | Flagship reasoning model of Multiverse Computing, aimed at enterprise-scale agents and coding |
| Speed | Returns 500 tokens, thinking time included, in 15.3 seconds, avoiding the latency typical of the 400B-plus class |
| Languages | Runs in English and Spanish |
| Access | Served through the CompactifAI API, so teams can test it without standing up infrastructure |
Multi-step tasks without the usual latency
Quasar is designed for multi-step work that needs planning, tool use, code execution and large context. The response time is what keeps those agent loops fast enough to sit inside an interactive product rather than a batch job.
A European, bilingual foundation
Support for English and Spanish makes Quasar a practical foundation for European and international enterprises that need reasoning without narrowing deployment to a single language. Multiverse Computing targets organizations running software development agents, technical copilots, research systems and workflow automation across engineering, operations and knowledge work.
Benchmark Performance
Independent evaluations · Artificial Analysis
Accuracy & Capability Details
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| Model Details | |||
|---|---|---|---|
| General Info | |||
| Provider | Multiverse Computing | Anthropic | Anthropic |
| Release Date | August 10, 2026 | September 22, 2026 | September 28, 2026 |
| Knowledge Cutoff | - | - | Jun 2026 |
| Context & Limits | |||
| Context Window | 131K | 1M Best Context Window | 1M Best Context Window |
| Pricing (per 1M tokens) | |||
| Input Pricing | $0.60 Best Input Pricing | $4 | $2 |
| Output Pricing | $1.80 Best Output Pricing | $20 | $10 |
| Modalities | |||
| Inputs | text | textimagefile | textimagefile |
| Outputs | text | text | text |
| Benchmarks (0-100) | |||
| Intelligence Index | 26.7 | 57.6 Best Intelligence Index | 56.0 |
| Coding Index | 61.2 | - | - |
| Agentic Index | 31.4 | - | - |
Humanity's Last Exam
Extremely difficult logical reasoning and knowledge.
Long Context Reasoning
Logical reasoning over long context windows.
SciCode Benchmark
Scientific coding and mathematical modeling.
Independent evaluation data provided by Artificial Analysis. To view the latest benchmarks and full details, visit their official site.
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