# Meta's benchmark table puts Gemini 3.1 Pro at 59.2% on biohazard refusals > Source: > Published: 2026-11-11 00:14:04+00:00 # Meta's benchmark table puts Gemini 3.1 Pro at 59.2% on biohazard refusals **Meta's May 26th, 2026 Muse Spark report lists Gemini 3.1 Pro at 59.2% in one table and 61.5% in another on SecureBio BioTIER v1 refusals.** By [RuntimeWire Staff](https://runtimewire.com/author/runtimewire-staff) · Published Primary source: [Meta Muse Spark Safety & Preparedness Report](https://ai.meta.com/static-resource/muse-spark-safety-and-preparedness-report/) ## Why it matters BioTIER refusal rates show how often a tested system declines prompts that biosafety experts say should be refused. Meta's six-model table gives operators and policymakers a rare side-by-side view, while its dual Gemini and GPT figures and unclear competitor configurations limit how far the ranking can be generalized. Meta's own safety paperwork contains the sharpest cross-lab comparison in the file. In the [Muse Spark Safety & Preparedness Report](https://ai.meta.com/static-resource/muse-spark-safety-and-preparedness-report/?ref=runtimewire), dated May 26th, 2026, Meta put Muse Spark at a 98.0% refusal rate on SecureBio's BioTIER benchmark, [Claude Opus 4.6](https://runtimewire.com/models/anthropic/claude-opus-4.6) at 95.4%, [GPT-5.4](https://runtimewire.com/models/openai/gpt-5.4) at 75.4%, and Gemini 3.1 Pro at 59.2% in its summary scorecard.… When you purchase through links in our articles, [we may earn a small commission](https://runtimewire.com/affiliate-monetization-standards). This doesn’t affect our editorial independence.