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© 2026 CompareLLM. Public benchmark data aggregated from Arena Elo, LiveBench, SWE-bench & OpenRouter.

Every score has a dated snapshot.

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  2. Comparisons
  3. OpenAI: GPT Audio Mini vs Llama 3.1 405B

Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

OpenAI: GPT Audio Mini vs Llama 3.1 405B benchmark

In this head-to-head showdown, OpenAI: GPT Audio Mini is more budget-friendly at $2.4/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Both OpenAI: GPT Audio Mini and Llama 3.1 405B present distinct architectural strengths. Compare the verified benchmark matrix below to choose the model tailored to your specific application requirements.
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OpenAI
OpenAI: GPT Audio Mini

Auto-discovered from OpenRouter (openai/gpt-audio-mini). Preview until a second source matches.

$2.4/1M out
Meta
Llama 3.1 405B

Meta flagship open-weight 405B dense foundation model with 128k context window.

Elo 1,370$3.5/1M out
Top Rival Showdowns for OpenAI: GPT Audio Mini
All Matchups
Compare vs:vs Claude Opus 4.5vs Gemini 3 Provs Grok 4.6vs DeepSeek V4 Provs Qwen 3 Max
Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar Leader

OpenAI: GPT Audio Mini

$2.4 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect
Percentile 0–100
Dimensional AdvantageLlama 3.1 405B 4/6
Head-to-Head Comparison

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

OpenAI: GPT Audio Mini (2)vsLlama 3.1 405B (7)
OpenAI: GPT Audio Mini: 2W (22%)Overall: Llama 3.1 405BLlama 3.1 405B: 7W (78%)
← OpenAI: GPT Audio Mini1 tiesLlama 3.1 405B →
Llama 3.1 405B (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo
—vs1,370
Coding Elo
—vs1,385
SWE-bench
—vs58.4%
LiveBench
—vs61.2%
GPQA Diamond
—vs75.2%
OpenAI: GPT Audio Mini: 0WLlama 3.1 405B: 5W
Llama 3.1 405B (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed
—vs42 tok/s
Time to first token
—vs360 ms
OpenAI: GPT Audio Mini: 0WLlama 3.1 405B: 2W
OpenAI: GPT Audio Mini (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price
$2.4/1Mvs$3.5/1M
Input price
$0.6/1Mvs$1.25/1M
Context window
128kvs128k
OpenAI: GPT Audio Mini: 2WLlama 3.1 405B: 0W

Side-by-Side Benchmark Matrix

Preference Elo
OpenAI: GPT Audio Mini—
Llama 3.1 405B1,370
lmarena · Aug 17, 2026
Coding Elo
OpenAI: GPT Audio Mini—
Llama 3.1 405B1,385
lmarena · Aug 17, 2026
LiveBench
OpenAI: GPT Audio Mini—
Llama 3.1 405B61.2%
livebench · Aug 17, 2026
SWE-bench
OpenAI: GPT Audio Mini—
Llama 3.1 405B58.4%
swebench · Aug 17, 2026
GPQA Diamond
OpenAI: GPT Audio Mini—
Llama 3.1 405B75.2%
seed-bootstrap · Aug 1, 2026
Time to first token
OpenAI: GPT Audio Mini—
Llama 3.1 405B360 ms
seed-bootstrap · Aug 1, 2026
Output speed
OpenAI: GPT Audio Mini—
Llama 3.1 405B42 tok/s
seed-bootstrap · Aug 1, 2026
Input priceOpenAI: GPT Audio Mini (+$0.65/1M)
OpenAI: GPT Audio Mini$0.6/1M
openrouter · Aug 17, 2026
Llama 3.1 405B$1.25/1M
seed-bootstrap · Aug 1, 2026
Output priceOpenAI: GPT Audio Mini (+$1.1/1M)
OpenAI: GPT Audio Mini$2.4/1M
openrouter · Aug 17, 2026
Llama 3.1 405B$3.5/1M
seed-bootstrap · Aug 1, 2026
Context window
OpenAI: GPT Audio Mini128k
openrouter · Aug 17, 2026
Llama 3.1 405B128k
seed-bootstrap · Aug 1, 2026
BenchmarkOpenAI: GPT Audio MiniLlama 3.1 405BAdvantage Delta
Preference Elo—
1,370
lmarena · Aug 17, 2026
—
Coding Elo—
1,385
lmarena · Aug 17, 2026
—
LiveBench—
61.2%
livebench · Aug 17, 2026
—
SWE-bench—
58.4%
swebench · Aug 17, 2026
—
GPQA Diamond—
75.2%
seed-bootstrap · Aug 1, 2026
—
Time to first token—
360 ms
seed-bootstrap · Aug 1, 2026
—
Output speed—
42 tok/s
seed-bootstrap · Aug 1, 2026
—
Input price
$0.6/1M
openrouter · Aug 17, 2026
$1.25/1M
seed-bootstrap · Aug 1, 2026
OpenAI: GPT Audio Mini (+$0.65/1M)
Output price
$2.4/1M
openrouter · Aug 17, 2026
$3.5/1M
seed-bootstrap · Aug 1, 2026
OpenAI: GPT Audio Mini (+$1.1/1M)
Context window
128k
openrouter · Aug 17, 2026
128k
seed-bootstrap · Aug 1, 2026
—
Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save up to 41% with OpenAI: GPT Audio Mini
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
OpenAI: GPT Audio Mini$57.00 / mo
In: $21Out: $36
Llama 3.1 405B$96.25 / mo
In: $43.75Out: $52.5
Estimated Cost Delta

OpenAI: GPT Audio Mini is estimated to save $39.25/month ($471/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    OpenAI: GPT Audio Mini:Pick OpenAI: GPT Audio Mini when you are optimizing output cost.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatOpenAI: GPT Audio Mini

Lower output list price ($2.4/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGOpenAI: GPT Audio Mini

Larger window (128k).

Screenshots / visionLlama 3.1 405B

Llama 3.1 405B is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatOpenAI: GPT Audio MiniLower output list price ($2.4/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGOpenAI: GPT Audio MiniLarger window (128k).
Screenshots / visionLlama 3.1 405BLlama 3.1 405B is the side marked multimodal in the catalog.
Community Sentiment

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CompareLLM Matrix

Verified head-to-head card

LIVE
VS
OpenAI

OpenAI: GPT Audio Mini

Elo n/a
LiveBench—
SWE-bench—
Speed—
Output cost$2.4/1M
Meta

Llama 3.1 405B

Elo 1,370
LiveBench61.2%
SWE-bench58.4%
Speed42 tok/s
Output cost$3.5/1M

Frequently Asked Questions

Which is better overall, OpenAI: GPT Audio Mini or Llama 3.1 405B?
We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, OpenAI: GPT Audio Mini or Llama 3.1 405B?
SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?
OpenAI: GPT Audio Mini output tokens are $2.4/1M versus $3.5/1M. Input prices and retry rates still move the real bill.
Which is faster, OpenAI: GPT Audio Mini or Llama 3.1 405B?
We do not have TTFT for both models.
Which has the larger context window?
OpenAI: GPT Audio Mini accepts 128k tokens versus 128k.
Can I self-host either model?
Llama 3.1 405B is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.
Are these scores from CompareLLM’s own evals?
No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?
Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. OpenAI: GPT Audio Mini and Llama 3.1 405B Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All OpenAI: GPT Audio Mini matchups →|All Llama 3.1 405B matchups →
Llama 3.1 405B vs Llama 3.1 70B (next llama)GPT-5 vs Llama 3.1 405BLlama 4 Maverick vs Llama 3.1 405BGPT-4.5 Orion vs Llama 3.1 405BGPT-5.6 Sol vs Llama 3.1 405BGPT-5.6 Terra vs Llama 3.1 405B