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GPT-4.1 Mini vs Llama 3.1 8B Instruct

GPT-4.1 Mini

OpenAI

44#183
vs
Signal-by-Signal Comparison
SignalGPT-4.1 MiniDeltaLlama 3.1 8B Instruct
Capabilities
83
+33
50
Benchmarks
39
-3
42
Pricing
98
-1
100
Context window size
96
+14
81
Recency
33
+33
0
Output Capacity
72
-9
81
Overall Result
3 wins
of 6
3 wins
It's a tie - both models win 3 signals each

Score History

Score History (35 data points)
GPT-4.1 MiniLlama 3.1 8B Instruct
GPT-4.1 Mini

44.2

current score

Leader

GPT-4.1 Mini

right now

Llama 3.1 8B Instruct

40.7

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

GPT-4.1 Mini

OpenAI

Per request$0.001200
Daily$4.00
Monthly$120.00
Annual$1440.00

Llama 3.1 8B Instruct

Meta

Best Value
Per request$0.000090
Daily$0.30
Monthly$9.00
Annual$108.00

Llama 3.1 8B Instruct saves you $111.00/month

That's $1332.00/year compared to GPT-4.1 Mini at your current usage level of 100K calls/month.

93% cheaper
Choose Llama 3.1 8B Instruct for cost optimization

GPT-4.1 Mini pricing:
Input:$0.40/M tokens
Output:$1.60/M tokens
Llama 3.1 8B Instruct pricing:
Input:$0.05/M tokens
Output:$0.08/M tokens
Winner
GPT-4.1 Mini

OpenAI

44

Composite Score

Llama 3.1 8B Instruct

Meta

41

Composite Score

Signal-by-Signal Comparison
MetricGPT-4.1 MiniLlama 3.1 8B InstructWinner
Overall Score
44
41
GPT-4.1 Mini
Rank#183#184
GPT-4.1 Mini
Quality Rank#183#184
GPT-4.1 Mini
Adoption Rank#183#184
GPT-4.1 Mini
Parameters--8B--
Context Window1048K131K
GPT-4.1 Mini
Pricing$0.40/$1.60/M$0.05/$0.08/M--
Signal Scores
Capabilities
83
50
GPT-4.1 Mini
Benchmarks
39
42
Llama 3.1 8B Instruct
Pricing
98
100
Llama 3.1 8B Instruct
Context window size
96
81
GPT-4.1 Mini
Recency
33
0
GPT-4.1 Mini
Output Capacity
72
81
Llama 3.1 8B Instruct
Benchmark Head-to-Head(5 benchmarks)
GPT-4.1 Mini: 1Llama 3.1: 0
GPT-4.1 Mini
Llama 3.1
Normalized 0-100%
MMLU-Pro
-30.37%
HumanEval
-69.5%
IFEval
-72.05%
BBH
-30.85%
BigCodeBench
48.9%32.8%
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

GPT-4.1 MiniEntry Level

Scores 44/100 (rank #183), placing it in the top 37% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Llama 3.1 8B InstructEntry Level

Scores 41/100 (rank #184), placing it in the top 37% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

With only a 4-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.

When to Use Each Model

Choose GPT-4.1 Mini when you need:

  • Processing long documents or large codebases (1048K token context)
  • Multimodal workflows that require image understanding

Choose Llama 3.1 8B Instruct when you need:

  • High-volume production workloads where API costs must be minimized
  • Self-hosted deployments where you need full control over the model
Cost-Performance Analysis
GPT-4.1 Mini
Input cost$0.40/M tokens
Output cost$1.60/M tokens
Cost per quality point$0.045
Est. monthly (1M tokens/day)$30.00
Llama 3.1 8B InstructBest Value
Input cost$0.05/M tokens
Output cost$0.08/M tokens
Cost per quality point$0.003
Est. monthly (1M tokens/day)$1.95

Llama 3.1 8B Instruct offers 94% better value per quality point. At 1M tokens/day, you'd spend $1.95/month with Llama 3.1 8B Instruct vs $30.00/month with GPT-4.1 Mini - a $28.05 monthly difference.

Latency & Speed
GPT-4.1 MiniFaster
Speed score0/100
Llama 3.1 8B Instruct
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

GPT-4.1 Mini

Customer support chatbot

Suitable for user-facing chat with competitive response times. Llama 3.1 8B Instruct also offers lower per-token costs for high-volume support

GPT-4.1 Mini

Long document analysis

Larger context window (1048K tokens) can process longer documents, contracts, and research papers in a single pass

GPT-4.1 Mini

Batch data extraction

Lower output pricing ($0.08/M) reduces costs when processing thousands of records daily

Llama 3.1 8B Instruct

Creative writing & content

Higher overall composite score (44/100) correlates with better nuance, coherence, and style in long-form content

GPT-4.1 Mini

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

GPT-4.1 Mini
Which Should You Choose?
Our recommendation:
GPT-4.1 Mini

GPT-4.1 Mini has a moderate advantage with a 3.5-point lead in composite score. It wins on more signal dimensions, but Llama 3.1 8B Instruct has specific strengths that could make it the better choice for certain workflows.

GPT-4.1 Mini
Recommended

by OpenAI

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by Meta

  • Choose for Cost - 94% lower pricing; better value at scale
Capability Comparison
CapabilityGPT-4.1 MiniLlama 3.1 8B Instruct
Vision (Image Input)differs
Function Calling
Streaming
JSON Mode
Reasoning
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

GPT-4.1 Mini

OpenAI

$2.64
estimated monthly cost

Llama 3.1 8B Instruct

Meta

Best Value
$0.1860
estimated monthly cost

Llama 3.1 8B Instruct saves you $2.45/month

That's 93% cheaper than GPT-4.1 Mini at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterGPT-4.1 MiniLlama 3.1 8B Instruct
Context Window1.0M131K
Max Output Tokens32,768117,964
Open SourceNoYes
CreatedApr 14, 2025Jul 23, 2024
Last updated: 7m ago

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GPT-4.1 Mini vs Llama 3.1 8B Instruct (2026) | LM Market Cap