Releasing Claude Instant 1.2

Businesses working with Claude can now access our latest version of Claude Instant, version 1.2, available through our API . Claude Instant is our faster, lower-priced yet still very capable model, which can handle a range of tasks including casual dialogue, text analysis, summarization, and document comprehension.

Claude Instant 1.2 incorporates the strengths of our latest model Claude 2 in real-world use cases and shows significant gains in key areas like math, coding, reasoning, and safety. It generates longer, more structured responses and follows formatting instructions better. Instant 1.2 also shows improvements in quote extraction, multilingual capabilities, and question answering.

Claude Instant 1.2 outperforms Claude Instant 1.1 on math and coding, achieving 58.7% on the Codex evaluation compared to 52.8% in our previous model. It also scored 86.7% on the GSM8K benchmark, compared to 80.9% for Claude Instant 1.1.

Developers looking to work with Claude Instant 1.2 can now call our latest model over our API (pricing can be found here ). If you’re a business and you’d like to work with us, you can indicate your interest here .

Our latest model has also improved on safety. It hallucinates less and is more resistant to jailbreaks, as shown in our automated red-teaming evaluation.

To evaluate the safety of our systems, Anthropic is giving employee-like access to a team from METR, a nonprofit that evaluates frontier AI models, and we're in early discussions with several other organizations, including Hugging Face.

Earlier this year, we shared an update on our election safeguards. Here, we outline how we’ve continued to strengthen these safeguards ahead of this year’s US midterms.