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Letta FrontierMemory leaderboard: DeepSeek V4.1 Flash beats GPT-6.1 Sol and Gemini 4 Argon

Letta added DeepSeek V4.1 Flash to its FrontierMemory leaderboard, where it beats GPT-6.1 Sol and Gemini 4 Argon at a fraction of the cost, while Kimi K3.1 Pro ties Opus 5.5 and GLM-5.3 for first.

Letta

@Letta_AIArchived 7 hours agoOriginally posted 2026.10.28

Letta @Letta_AIOriginally posted 2026.10.28

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We've added GPT-6.1 Terra, Kimi K3.1 Pro and DeepSeek V4.1 Flash to the FrontierMemory leaderboard. Kimi K3.1 Pro ties Opus 5.5 and GLM-5.3 for #1, and DeepSeek V4.1 Flash beats GPT-6.1 Sol and Gemini 4 Argon, for a fraction of the cost.

x.com/letta_ai/status/2115237654539407700Archived 2026.10.28 12:01