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Claude Opus 4.8 vs GPT-4o

Claude Opus 4.8

Anthropic

95#5
vs
GPT-4o

OpenAI

71#111
Signal-by-Signal Comparison
SignalClaude Opus 4.8DeltaGPT-4o
Capabilities
100
+33
67
Benchmarks
93
+19
74
Pricing
75
-15
90
Context window size
95
+14
81
Recency
100
+100
0
Output Capacity
85
+15
70
Overall Result
5 wins
of 6
1 wins
Claude Opus 4.8 wins 5 of 6 signals

Score History

Score History (24 data points)
Claude Opus 4.8GPT-4o
Claude Opus 4.8

95.1

current score

Leader

Claude Opus 4.8

right now

GPT-4o

71.2

current score

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

Claude Opus 4.8

Anthropic

Per request$0.017500
Daily$58.33
Monthly$1750.00
Annual$21000.00

GPT-4o

OpenAI

Best Value
Per request$0.007500
Daily$25.00
Monthly$750.00
Annual$9000.00

GPT-4o saves you $1000.00/month

That's $12000.00/year compared to Claude Opus 4.8 at your current usage level of 100K calls/month.

57% cheaper
Choose GPT-4o for cost optimization

Claude Opus 4.8 pricing:
Input:$5.00/M tokens
Output:$25.00/M tokens
GPT-4o pricing:
Input:$2.50/M tokens
Output:$10.00/M tokens
Winner
Claude Opus 4.8

Anthropic

95

Composite Score

GPT-4o

OpenAI

71

Composite Score

Signal-by-Signal Comparison
MetricClaude Opus 4.8GPT-4oWinner
Overall Score
95
71
Claude Opus 4.8
Rank#5#111
Claude Opus 4.8
Quality Rank#5#111
Claude Opus 4.8
Adoption Rank#5#111
Claude Opus 4.8
Parameters------
Context Window1000K128K
Claude Opus 4.8
Pricing$5.00/$25.00/M$2.50/$10.00/M--
Signal Scores
Capabilities
100
67
Claude Opus 4.8
Benchmarks
93
74
Claude Opus 4.8
Pricing
75
90
GPT-4o
Context window size
95
81
Claude Opus 4.8
Recency
100
0
Claude Opus 4.8
Output Capacity
85
70
Claude Opus 4.8
Benchmark Head-to-Head(16 benchmarks)
Claude Opus: 3GPT-4o: 0
Claude Opus
GPT-4o
Normalized 0-100%
MMLU
-88.7%
MMLU-Pro
-72.6%
GPQA Diamond
93.6%53.6%
MATH-500
-76.6%
HumanEval
-90.2%
SWE-bench Verified
88.6%30.8%
GSM8K
-95.8%
IFEval
-84.3%
BBH
-83.7%
ARC-Challenge
-96.4%
HellaSwag
-95.3%
Arena Elo
14791286
LiveBench
-64.3%
HLE
49.8%-
BigCodeBench
-51.1%
SimpleQA
-38.2%
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 4.8Elite Tier

Scores 95/100 (rank #5), placing it in the top 99% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
GPT-4oStrong Performer

Scores 71/100 (rank #111), placing it in the top 62% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

Claude Opus 4.8 has a 24-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose Claude Opus 4.8 when you need:

  • Processing long documents or large codebases (1000K token context)
  • Step-by-step reasoning and chain-of-thought problem solving

Choose GPT-4o when you need:

  • High-volume production workloads where API costs must be minimized
Cost-Performance Analysis
Claude Opus 4.8
Input cost$5.00/M tokens
Output cost$25.00/M tokens
Cost per quality point$0.315
Est. monthly (1M tokens/day)$450.00
GPT-4oBest Value
Input cost$2.50/M tokens
Output cost$10.00/M tokens
Cost per quality point$0.176
Est. monthly (1M tokens/day)$187.50

GPT-4o offers 58% better value per quality point. At 1M tokens/day, you'd spend $187.50/month with GPT-4o vs $450.00/month with Claude Opus 4.8 - a $262.50 monthly difference.

Latency & Speed
Claude Opus 4.8Faster
Speed score0/100
GPT-4o
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 4.8

Customer support chatbot

Suitable for user-facing chat with competitive response times. GPT-4o also offers lower per-token costs for high-volume support

Claude Opus 4.8

Long document analysis

Larger context window (1000K tokens) can process longer documents, contracts, and research papers in a single pass

Claude Opus 4.8

Batch data extraction

Lower output pricing ($10.00/M) reduces costs when processing thousands of records daily

GPT-4o

Creative writing & content

Higher overall composite score (95/100) correlates with better nuance, coherence, and style in long-form content

Claude Opus 4.8

Image understanding & OCR

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

Claude Opus 4.8
Which Should You Choose?
Our recommendation:
Claude Opus 4.8

Claude Opus 4.8 clearly outperforms GPT-4o with a significant 23.89999999999999-point lead. For most general use cases, Claude Opus 4.8 is the stronger choice. However, GPT-4o may still excel in niche scenarios.

Claude Opus 4.8
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 - 58% lower pricing; better value at scale
Capability Comparison
CapabilityClaude Opus 4.8GPT-4o
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoningdiffers
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Claude Opus 4.8

Anthropic

$39.00
estimated monthly cost

GPT-4o

OpenAI

Best Value
$16.50
estimated monthly cost

GPT-4o saves you $22.50/month

That's 58% cheaper than Claude Opus 4.8 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 4.8GPT-4o
Context Window1M128K
Max Output Tokens128,00016,384
Open SourceNoNo
CreatedMay 27, 2026May 13, 2024
Last updated: 55m ago

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