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Claude Opus 4 vs o4 Mini

Claude Opus 4

Anthropic

82#40
vs
o4 Mini

OpenAI

81#42
Signal-by-Signal Comparison
SignalClaude Opus 4Deltao4 Mini
Capabilities
83
-17
100
Benchmarks
82
-2
85
Pricing
25
-71
96
Context window size
76
--
76
Recency
58
+7
51
Output Capacity
75
-8
83
Overall Result
1 wins
of 6
4 wins
o4 Mini wins 4 of 6 signals

Score History

Score History (21 data points)
Claude Opus 4o4 Mini
Claude Opus 4

81.7

current score

Leader

Claude Opus 4

right now

o4 Mini

81

current score

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

Claude Opus 4

Anthropic

Per request$0.052500
Daily$175.00
Monthly$5250.00
Annual$63000.00

o4 Mini

OpenAI

Best Value
Per request$0.003300
Daily$11.00
Monthly$330.00
Annual$3960.00

o4 Mini saves you $4920.00/month

That's $59040.00/year compared to Claude Opus 4 at your current usage level of 100K calls/month.

94% cheaper
Choose o4 Mini for cost optimization

Claude Opus 4 pricing:
Input:$15.00/M tokens
Output:$75.00/M tokens
o4 Mini pricing:
Input:$1.10/M tokens
Output:$4.40/M tokens
Winner
Claude Opus 4

Anthropic

82

Composite Score

o4 Mini

OpenAI

81

Composite Score

Signal-by-Signal Comparison
MetricClaude Opus 4o4 MiniWinner
Overall Score
82
81
Claude Opus 4
Rank#40#42
Claude Opus 4
Quality Rank#40#42
Claude Opus 4
Adoption Rank#40#42
Claude Opus 4
Parameters------
Context Window200K200K--
Pricing$15.00/$75.00/M$1.10/$4.40/M--
Signal Scores
Capabilities
83
100
o4 Mini
Benchmarks
82
85
o4 Mini
Pricing
25
96
o4 Mini
Context window size
76
76
Claude Opus 4
Recency
58
51
Claude Opus 4
Output Capacity
75
83
o4 Mini
Benchmark Head-to-Head(12 benchmarks)
Claude Opus: 52 tieso4 Mini: 4
Claude Opus
o4 Mini
Normalized 0-100%
MMLU
91%-
MMLU-Pro
80%83%
GPQA Diamond
82.6%81.4%
MATH-500
86%97.3%
HumanEval
95%95%
SWE-bench Verified
72.5%68.1%
AIME 2024
68%93.4%
IFEval
90.5%90%
BBH
89%90.5%
Arena Elo
14201380
LiveBench
72%72%
HLE
28.5%18.08%
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.

Claude Opus 4Strong Performer

Scores 82/100 (rank #40), placing it in the top 87% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
o4 MiniStrong Performer

Scores 81/100 (rank #42), placing it in the top 86% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

With only a 1-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 Claude Opus 4 when you need:

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

Choose o4 Mini when you need:

  • High-volume production workloads where API costs must be minimized
  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
Claude Opus 4
Input cost$15.00/M tokens
Output cost$75.00/M tokens
Cost per quality point$1.102
Est. monthly (1M tokens/day)$1350.00
o4 MiniBest Value
Input cost$1.10/M tokens
Output cost$4.40/M tokens
Cost per quality point$0.068
Est. monthly (1M tokens/day)$82.50

o4 Mini offers 94% better value per quality point. At 1M tokens/day, you'd spend $82.50/month with o4 Mini vs $1350.00/month with Claude Opus 4 - a $1267.50 monthly difference.

Latency & Speed
Claude Opus 4Faster
Speed score0/100
o4 Mini
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

Claude Opus 4

Customer support chatbot

Suitable for user-facing chat with competitive response times. o4 Mini also offers lower per-token costs for high-volume support

Claude Opus 4

Long document analysis

Larger context window (200K tokens) can process longer documents, contracts, and research papers in a single pass

Claude Opus 4

Batch data extraction

Lower output pricing ($4.40/M) reduces costs when processing thousands of records daily

o4 Mini

Creative writing & content

Higher overall composite score (82/100) correlates with better nuance, coherence, and style in long-form content

Claude Opus 4

Image understanding & OCR

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

Claude Opus 4
Which Should You Choose?
Our recommendation:
Claude Opus 4

Claude Opus 4 and o4 Mini are extremely close in overall performance (only 0.7000000000000028 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.

Claude Opus 4
Recommended

by Anthropic

  • 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 - 94% lower pricing; better value at scale
Capability Comparison
CapabilityClaude Opus 4o4 Mini
Vision (Image Input)
Function Calling
Streaming
JSON Modediffers
Reasoning
Web Search
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Claude Opus 4

Anthropic

$117.00
estimated monthly cost

o4 Mini

OpenAI

Best Value
$7.26
estimated monthly cost

o4 Mini saves you $109.74/month

That's 94% cheaper than Claude Opus 4 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
ParameterClaude Opus 4o4 Mini
Context Window200K200K
Max Output Tokens32,000100,000
Open SourceNoNo
CreatedMay 22, 2025Apr 16, 2025
Last updated: 41m ago

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