Levels crossed

Which provider statements say a capability level was crossed, not crossed or not determined?

138 rows, one per model version, domain and level; 12 match the choice below. Grouped by model, newest first.

Claude Haiku 5.5 Anthropic · 7 October 2026

Chemical, biological, radiological and nuclear · CB-1 · Stated as crossed
However, we do treat Haiku 5.5 as meeting our CB-1 and Autonomy-1 thresholds, and we apply the corresponding mitigations from our RSP.
Anthropic · 7 October 2026 · Read the source

Claude Sonnet 5.5 Anthropic · 28 September 2026

Chemical, biological, radiological and nuclear · CB-1 · Stated as crossed
We do treat Sonnet 5.5 as meeting our CB-1 and Autonomy-1 thresholds and apply the corresponding mitigations from our RSP.
Anthropic · 28 September 2026 · Read the source

Claude Opus 5.5 Anthropic · 22 September 2026

Chemical, biological, radiological and nuclear · CB-1 · Stated as crossed
On chemical and biological risks, we treat Opus 5.5 as having CB-1 capabilities (relating to the synthesis of non-novel weapons) but not CB-2 capabilities (relating to the synthesis of novel weapons).
Anthropic · 22 September 2026 · Read the source

Claude Opus 5 Anthropic · 24 July 2026

Chemical, biological, radiological and nuclear · CB-1 · Stated as crossed
On chemical and biological risks, we treat the model as having CB-1 capabilities (relating to the synthesis of non-novel weapons), but not CB-2 capabilities (relating to the synthesis of novel weapons).
Anthropic · 24 July 2026 · Read the source

GPT-Rosalind-5.5 OpenAI · 3 June 2026

Chemical, biological, radiological and nuclear · High · Stated as crossed
Under our Preparedness Framework, the Preparedness evaluations in the Biological and Chemical domain met our threshold for High capability while falling below the threshold for Critical.
OpenAI · 3 June 2026 · Read the source

Muse Spark Contemplating Meta

Chemical, biological, radiological and nuclear · High · Stated as crossed
We retain the same “high risk” determination for the unmitigated model.
Meta · 3 June 2026 · Read the source

GPT-5.5 Instant OpenAI

Chemical, biological, radiological and nuclear · High · Stated as crossed
GPT-5.5 Instant is our first Instant model to be treated as High Capability in the Biological and Chemical domain, as well as in the Cybersecurity domain.
OpenAI · 4 May 2026 · Read the source

GPT-5.5 OpenAI · 23 April 2026

Chemical, biological, radiological and nuclear · High · Stated as crossed
we are continuing to treat GPT-5.5 as High capability in the Biological and Chemical domain.
OpenAI · 23 April 2026 · Read the source

GPT-5.4 Thinking OpenAI · 5 March 2026

Chemical, biological, radiological and nuclear · High · Stated as crossed
As we did for gpt-5.2-thinking before it, we are continuing to treat gpt-5.4-thinking as High capability in the Biological and Chemical domain.
OpenAI · 5 March 2026 · Read the source

Claude Opus 4.6 Anthropic

Chemical, biological, radiological and nuclear · ASL-3 · Stated as crossed
The model crossed or met thresholds on all ASL-3 evaluations except our synthesis screening evasion, consistent with incremental capability improvements driven primarily by better agentic workflows.
Anthropic · 5 February 2026 · Read the source

GPT-5.3-Codex OpenAI · 5 February 2026

Chemical, biological, radiological and nuclear · High · Stated as crossed
We are also treating GPT-5.3-Codex as High risk in the Biological and Chemical domain, and applying the same safeguards as for our other deployments of models that reach this designation.
OpenAI · 5 February 2026 · Read the source

GPT-5 OpenAI

Chemical, biological, radiological and nuclear · High · Stated as crossed
Similarly to ChatGPT agent, we have decided to treat gpt-5-thinking as High capability in the Biological and Chemical domain under our Preparedness Framework, activating the associated safeguards.
OpenAI · 13 August 2025 · Read the source
The same level is stated in 1 other sentence, counted once. Show it.
We decided to treat this launch as High capability in the Biological and Chemical domain, activating the associated Preparedness safeguards.
OpenAI · 13 August 2025 · Read the source

Abbreviations in these level names

ASL: AI Safety Level: A graded set of safety and security measures that become stricter as model capabilities increase.
we use AI Safety Level Standards (ASL Standards), graduated sets of safety and security measures that become more stringent as model capabilities increase.
Anthropic · Read the source

Not listed: 96 more stored statements that do not, on their own, state a level for one model version (for example a definition of a level, a sentence about another model, or text damaged in our copy of the document).

A row is one model version, one domain and one level. The 138 rows quote 121 different sentences. We count a sentence once by its exact text, even where it fills several rows or appears under several versions. 8 stored rows state a level already listed for the same version and domain under another name or in another sentence; each is listed under that row and not counted again.