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Anthropic

Claude Opus 4.8

VS
Meta

Llama-3.1 405B

✍️ Analysis by:the whichllmmodel Editorial Team|📅 Updated: June 2026

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, Claude Opus 4.8 is the premium intelligence choice, scoring 69.2% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: Llama-3.1 405B is 1.0x cheaper to run and delivers 4.0x faster throughput. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Llama-3.1 405B offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of Claude Opus 4.8 fully justifies the cost.

Model Specs

Claude Opus 4.8

Benchmarks & Scores

Coding (swe-bench-pro)Winner (+)
69.2%
Reasoning (gpqa-diamond)Winner (+42.9%)
93.6%

Cost & Performance

Cost (per 1M tokens)
$10.00Input: $5.00 | Output: $25.00
Speed
48.1 tps
Context WindowLarger
1M tokens
Model Specs

Llama-3.1 405B

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)
50.7%

Cost & Performance

Cost (per 1M tokens)
N/AInput: N/A | Output: N/A
Speed4.0x faster
193 tps
Context Window
131.07k tokens

Frequently Asked Questions

Pricing data is currently unavailable for one or both of these models, so a direct cost comparison cannot be determined.

Llama-3.1 405B is faster than Claude Opus 4.8. Llama-3.1 405B generates 193 tokens per second (tps) compared to Claude Opus 4.8 which generates 48.1 tokens per second.

Claude Opus 4.8 is better for coding tasks. It scores 69.2% on coding evaluations (swe-bench-pro) compared to Llama-3.1 405B which scores N/A.

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