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Claude Opus 4 vs GPT-6 Astra

Claude Opus 4

Anthropic

82#74
vs
GPT-6 Astra

OpenAI

82#75
Signal-by-Signal Comparison
SignalClaude Opus 4DeltaGPT-6 Astra
Capabilities
83
-17
100
Benchmarks
82
+82
0
Pricing
25
-25
50
Context window size
84
-11
96
Recency
46
-54
100
Output Capacity
72
-10
82
Overall Result
1 wins
of 6
5 wins
GPT-6 Astra wins 5 of 6 signals

Score History

Score History (30 data points)
Claude Opus 4GPT-6 Astra
Claude Opus 4

82.1

current score

Leader

Claude Opus 4

right now

GPT-6 Astra

81.8

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

GPT-6 Astra

OpenAI

Best Value
Per request$0.035000
Daily$116.67
Monthly$3500.00
Annual$42000.00

GPT-6 Astra saves you $1750.00/month

That's $21000.00/year compared to Claude Opus 4 at your current usage level of 100K calls/month.

33% cheaper
Choose GPT-6 Astra for cost optimization

Claude Opus 4 pricing:
Input:$15.00/M tokens
Output:$75.00/M tokens
GPT-6 Astra pricing:
Input:$10.00/M tokens
Output:$50.00/M tokens
Winner
Claude Opus 4

Anthropic

82

Composite Score

GPT-6 Astra

OpenAI

82

Composite Score

Signal-by-Signal Comparison
MetricClaude Opus 4GPT-6 AstraWinner
Overall Score
82
82
Claude Opus 4
Rank#74#75
Claude Opus 4
Quality Rank#74#75
Claude Opus 4
Adoption Rank#74#75
Claude Opus 4
Parameters------
Context Window200K1050K
GPT-6 Astra
Pricing$15.00/$75.00/M$10.00/$50.00/M--
Signal Scores
Capabilities
83
100
GPT-6 Astra
Benchmarks
82
--
Claude Opus 4
Pricing
25
50
GPT-6 Astra
Context window size
84
96
GPT-6 Astra
Recency
46
100
GPT-6 Astra
Output Capacity
72
82
GPT-6 Astra
Benchmark Head-to-Head(12 benchmarks)
Claude Opus: 0GPT-6 Astra: 1
Claude Opus
GPT-6 Astra
Normalized 0-100%
MMLU
91%-
MMLU-Pro
80%-
GPQA Diamond
82.6%-
MATH-500
86%-
HumanEval
95%-
SWE-bench Verified
72.5%-
AIME 2024
68%-
IFEval
90.5%-
BBH
89%-
Arena Elo
1420-
LiveBench
72%-
HLE
28.5%54.8%
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.

Claude Opus 4Strong Performer

Scores 82/100 (rank #74), placing it in the top 75% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
GPT-6 AstraStrong Performer

Scores 82/100 (rank #75), placing it in the top 74% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

With only a 0-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 GPT-6 Astra when you need:

  • High-volume production workloads where API costs must be minimized
  • Processing long documents or large codebases (1050K token context)
  • 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$1.096
Est. monthly (1M tokens/day)$1350.00
GPT-6 AstraBest Value
Input cost$10.00/M tokens
Output cost$50.00/M tokens
Cost per quality point$0.733
Est. monthly (1M tokens/day)$900.00

GPT-6 Astra offers 33% better value per quality point. At 1M tokens/day, you'd spend $900.00/month with GPT-6 Astra vs $1350.00/month with Claude Opus 4 - a $450.00 monthly difference.

Latency & Speed
Claude Opus 4Faster
Speed score0/100
GPT-6 Astra
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. GPT-6 Astra also offers lower per-token costs for high-volume support

Claude Opus 4

Long document analysis

Larger context window (1050K tokens) can process longer documents, contracts, and research papers in a single pass

GPT-6 Astra

Batch data extraction

Lower output pricing ($50.00/M) reduces costs when processing thousands of records daily

GPT-6 Astra

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 GPT-6 Astra are extremely close in overall performance (only 0.29999999999999716 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 - 33% lower pricing; better value at scale
Capability Comparison
CapabilityClaude Opus 4GPT-6 Astra
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

GPT-6 Astra

OpenAI

Best Value
$78.00
estimated monthly cost

GPT-6 Astra saves you $39.00/month

That's 33% 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 4GPT-6 Astra
Context Window200K1.1M
Max Output Tokens32,000128,000
Open SourceNoNo
CreatedMay 22, 2025Sep 4, 2026
Last updated: 38m ago

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Claude Opus 4 vs GPT-6 Astra (2026) | LM Market Cap