unconst/Affine-5czsc2fc98-r1032-vera-odpo-midrank-hibeta-shortctx-ultraextra-ep4-midlr-merged

TEXT GENERATIONConcurrent Unit Cost:3Model Size:35.1BQuant:FP8Context Size:32kTool Calling:SupportedPublished:Aug 20, 2026License:apache-2.0Architecture:Transformer Open Weights Featherless Exclusive Cold

The unconst/Affine-5czsc2fc98-r1032-vera-odpo-midrank-hibeta-shortctx-ultraextra-ep4-midlr-merged model is a 35.1 billion parameter Affine SN120 challenger, specifically fine-tuned using offline DPO for enhanced performance in Reason v4 evaluations. It optimizes for thoughts that raise teacher-side Reason, utilizing a short context length of 6144 tokens and a LoRA rank of 32. This model is primarily intended for SN120 Affine miner submissions and evalsrv Reason v4 duels, rather than general chat applications.

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Overview

This model, unconst/Affine-5czsc2fc98-r1032-vera-odpo-midrank-hibeta-shortctx-ultraextra-ep4-midlr-merged, is a 35.1 billion parameter Affine SN120 challenger. It was developed for the Reason v4 evaluation (weight_version_key=7) and is based on the vera6/affine-5g4yy75zuz-t6 parent model. The training involved an offline DPO (Direct Preference Optimization) method, specifically targeting preference for thoughts that improve teacher-side Reason scores.

Key Characteristics

  • Optimization Target: Enhanced performance in Reason v4 evaluations, focusing on generating responses that elevate teacher-side Reason scores.
  • Training Method: Offline DPO on Reason-ranked duel pairs, distinct from SFT or online GRPO.
  • Context Length: Utilizes a max_len of 6144 tokens, indicating a focus on shorter contexts.
  • LoRA Configuration: Trained with LoRA r=32 (MidRank) and α=128 (HiAlpha).
  • Performance: Achieved a margin of +0.005461 against the live king reign36 under wvk=7, leading to a "WIN / Stage-5 licensed" decision.

Intended Use

This model is specifically designed for:

  • SN120 Affine miner submissions.
  • Evalsrv Reason v4 duels.

It is not intended as a general-purpose chat model.