Model family evolution

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Follow related releases as a sequence, then open any brief or compare two adjacent generations using the Radar’s normalized fields.

Anthropic

Claude Opus

1 indexed release

Referenced predecessorClaude Opus 5

Named by the release note; not yet indexed as a full Radar brief.

22 Sept 2026Claude Opus 5.5

GAModel launch

1M context · $4 / $20

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xAI

Grok

3 indexed releases

16 Jul 2026Grok 4.5

GADeveloper capability

$2 / $6 per 1M

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12 Aug 2026Grok 4.6

AnnouncedModel launch

Successor to Grok 4.5

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21 Sept 2026Grok 4.7

GAModel launch

500K context · $2 / $6

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DeepSeek

DeepSeek V

2 indexed releases

24 Apr 2026DeepSeek-V4

GADeveloper capability

Pro + Flash

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10 Sept 2026DeepSeek V4.1 Flash

GAModel launch

Native multimodal

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Google DeepMind

Gemini Flash

3 indexed releases

21 Jul 2026Gemini 3.6 Flash

GACapability expansion

1M context

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13 Aug 2026Gemini 3.7 Flash

GAModel launch

Intro pricing until 31 Dec 2026

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02 Sept 2026Gemini 3.8 Flash

GAModel launch

$0.75 / $3.75 per 1M

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Google DeepMind

Gemini Flash Cyber

1 indexed release

Referenced predecessorGemini 3.5 Flash Cyber

Named by the release note; not yet indexed as a full Radar brief.

02 Sept 2026Gemini 3.8 Flash Cyber

LimitedModel launch

CyberGym + CWE-Bench

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Anthropic

Claude Fable

2 indexed releases

09 Jun 2026Claude Fable 5

GACapability expansion

$10 / $50 per 1M

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01 Sept 2026Claude Fable 5.1

GAModel update

Fable 5.1

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