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Claude Instant 1.2 vs Devstral 2 (123B)

Anthropic Claude Instant 1.2 vs Mistral Devstral 2 (123B) — side-by-side specs.

Anthropic
Claude Instant 1.2
Mistral
Devstral 2 (123B)
Overview
CompanyAnthropicMistral
Release dateAug 9 2023Dec 9 2025
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapClaude Instant 1.2 shipped 853 days before Devstral 2 (123B)

Which is better: Claude Instant 1.2 or Devstral 2 (123B)?

Claude Instant 1.2 and Devstral 2 (123B) don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude Instant 1.2 shipped 853 days before Devstral 2 (123B), so benchmark comparisons should account for the intervening progress.

Devstral 2 (123B) is an open-source / open-weight model; Claude Instant 1.2 is proprietary.

Direct benchmark comparisons are unavailable — Claude Instant 1.2 and Devstral 2 (123B) don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Claude Instant 1.2 released?
Claude Instant 1.2 was released by Anthropic on Aug 9 2023.
When was Devstral 2 (123B) released?
Devstral 2 (123B) was released by Mistral on Dec 9 2025.
Is Claude Instant 1.2 or Devstral 2 (123B) open source?
Devstral 2 (123B) is an open-source / open-weight model released by Mistral. Claude Instant 1.2 is a proprietary model released by Anthropic.

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