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Grok 4.5 vs OpenAI GPT Mini Latest

Grok 4.5

xAI

88#22
vs
Signal-by-Signal Comparison
SignalGrok 4.5DeltaOpenAI GPT Mini Latest
Capabilities
100
--
100
Benchmarks
86
+86
0
Pricing
94
-1
96
Context window size
81
+1
80
Recency
100
--
100
Output Capacity
20
-65
85
Overall Result
2 wins
of 6
2 wins
It's a tie - both models win 2 signals each

Score History

Score History (11 data points)
Grok 4.5OpenAI GPT Mini Latest
Grok 4.5

87.8

current score

Leader

Grok 4.5

right now

OpenAI GPT Mini Latest

40

current score

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

Grok 4.5

xAI

Per request$0.005000
Daily$16.67
Monthly$500.00
Annual$6000.00

OpenAI GPT Mini Latest

~openai

Best Value
Per request$0.003000
Daily$10.00
Monthly$300.00
Annual$3600.00

OpenAI GPT Mini Latest saves you $200.00/month

That's $2400.00/year compared to Grok 4.5 at your current usage level of 100K calls/month.

40% cheaper
Choose OpenAI GPT Mini Latest for cost optimization

Grok 4.5 pricing:
Input:$2.00/M tokens
Output:$6.00/M tokens
OpenAI GPT Mini Latest pricing:
Input:$0.75/M tokens
Output:$4.50/M tokens
Winner
Grok 4.5

xAI

88

Composite Score

OpenAI GPT Mini Latest

~openai

40

Composite Score

Signal-by-Signal Comparison
MetricGrok 4.5OpenAI GPT Mini LatestWinner
Overall Score
88
40
Grok 4.5
Rank#22#196
Grok 4.5
Quality Rank#22#196
Grok 4.5
Adoption Rank#22#196
Grok 4.5
Parameters------
Context Window500K400K
Grok 4.5
Pricing$2.00/$6.00/M$0.75/$4.50/M--
Signal Scores
Capabilities
100
100
Grok 4.5
Benchmarks
86
--
Grok 4.5
Pricing
94
96
OpenAI GPT Mini Latest
Context window size
81
80
Grok 4.5
Recency
100
100
Grok 4.5
Output Capacity
20
85
OpenAI GPT Mini Latest
Benchmark Head-to-Head(11 benchmarks)
Grok 4.5: 0OpenAI GPT: 0
Grok 4.5
OpenAI GPT
Normalized 0-100%
MMLU
91.5%-
MMLU-Pro
83.5%-
GPQA Diamond
82%-
MATH-500
95%-
HumanEval
95.5%-
SWE-bench Verified
70%-
AIME 2024
88%-
IFEval
91%-
BBH
90%-
Arena Elo
1462-
LiveBench
73%-
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.

Grok 4.5Elite Tier

Scores 88/100 (rank #22), placing it in the top 93% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
OpenAI GPT Mini LatestEntry Level

Scores 40/100 (rank #196), placing it in the top 33% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

Grok 4.5 has a 48-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose Grok 4.5 when you need:

  • Step-by-step reasoning and chain-of-thought problem solving

Choose OpenAI GPT Mini Latest when you need:

  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
Grok 4.5Best Value
Input cost$2.00/M tokens
Output cost$6.00/M tokens
Cost per quality point$0.091
Est. monthly (1M tokens/day)$120.00
OpenAI GPT Mini Latest
Input cost$0.75/M tokens
Output cost$4.50/M tokens
Cost per quality point$0.131
Est. monthly (1M tokens/day)$78.75

Grok 4.5 offers 34% better value per quality point. At 1M tokens/day, you'd spend $78.75/month with OpenAI GPT Mini Latest vs $120.00/month with Grok 4.5 - a $41.25 monthly difference.

Latency & Speed
Grok 4.5Faster
Speed score0/100
OpenAI GPT Mini Latest
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

Grok 4.5

Customer support chatbot

Suitable for user-facing chat with competitive response times. OpenAI GPT Mini Latest also offers lower per-token costs for high-volume support

Grok 4.5

Long document analysis

Larger context window (500K tokens) can process longer documents, contracts, and research papers in a single pass

Grok 4.5

Batch data extraction

Lower output pricing ($4.50/M) reduces costs when processing thousands of records daily

OpenAI GPT Mini Latest

Creative writing & content

Higher overall composite score (88/100) correlates with better nuance, coherence, and style in long-form content

Grok 4.5

Image understanding & OCR

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

Grok 4.5
Which Should You Choose?
Our recommendation:
Grok 4.5

Grok 4.5 clearly outperforms OpenAI GPT Mini Latest with a significant 47.8-point lead. For most general use cases, Grok 4.5 is the stronger choice. However, OpenAI GPT Mini Latest may still excel in niche scenarios.

Grok 4.5
Recommended

by xAI

  • 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 ~openai

  • Choose for Cost - 34% lower pricing; better value at scale
Capability Comparison
CapabilityGrok 4.5OpenAI GPT Mini Latest
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoning
Web Search
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Grok 4.5

xAI

$10.80
estimated monthly cost

OpenAI GPT Mini Latest

~openai

Best Value
$6.75
estimated monthly cost

OpenAI GPT Mini Latest saves you $4.05/month

That's 38% cheaper than Grok 4.5 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
ParameterGrok 4.5OpenAI GPT Mini Latest
Context Window500K400K
Max Output Tokens--128,000
Open SourceNoNo
CreatedJul 8, 2026Apr 27, 2026
Last updated: 35m ago

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