Is Llama 3.1 8B Instruct a good deal?
Whether anything in this catalogue beats Llama 3.1 8B Instruct on both quality and price, and what you give up if it does. A computation on the current catalogue, not an opinion.
13 undominated of 136 · Sep 23, 2026
As of Sep 23, 2026, gpt-oss-20b scores higher and costs less than Llama 3.1 8B Instruct for Balanced on LMArena, but it is not a drop-in. You would give up: max output.
Inspect model evidence Compare differences & requirements
gpt-oss-20b scores 100.8 points higher and costs 37% less, but you would give up: max output.
LMArena Elo · higher is better
Scale starts at 1040 Elo
1186.5
Effective $/M · Balanced · lower is better
$0.058/M
LMArena Elo · higher is better
Scale starts at 1040 Elo
1287.3
Effective $/M · Balanced · lower is better
$0.036/M
Llama 3.1 8B Instruct takes text, returns up to 117,964 tokens from a 131,072-token context, and is listed by 5 sellers.
Compared against 136 rated, priced models on this lens: nothing dominates it outright, 2 more dominate it but give something up. Llama 3.1 8B Instruct scores 1186.5 at $0.06 per million tokens for this mix.
Higher score, lower price, named losses
Not a drop-in. The loss is why these are not a recommendation.
| Model | LMArena | Effective $/M | You give up |
|---|---|---|---|
| gpt-oss-20b | 1287.3 | $0.036/M | max output |
| Mistral Small 3 | 1233.5 | $0.058/M | context, max output, tools |
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