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Head-to-Head Architectural Faceoff (2026 Live)

GPT-6 Astra vs Claude Opus 5.5

Compare GPT-6 Astra vs Claude Opus 5.5 API pricing, token costs, context windows, and latency. See which model is cheaper and better for your stack.

AI Overview & Search Executive Summary

GPT-6 Astra charges $10.00/1M input and $50.00/1M output tokens, compared to Claude Opus 5.5 at $4.00/1M input and $20.00/1M output. Claude Opus 5.5 is 2.5x cheaper on input tokens. In reasoning benchmarks, Claude Opus 5.5 holds the higher AA Intelligence Index rating (59/100). For latency-critical streaming, GPT-6 Astra delivers 47 t/s (192.0s TTFT) while Claude Opus 5.5 provides 112 t/s (351.0s TTFT).

Overall Winner
Claude Opus 5.5
Best Price/IQ Balance
Budget Winner
Claude Opus 5.5
Claude Opus 5.5 is 2.5x cheaper on input tokens
Coding & Logic
Claude Opus 5.5
Higher Benchmark Rating
Context Window
GPT-6 Astra
Larger Document Context

Full Metric & Specification Comparison

MetricGPT-6 AstraClaude Opus 5.5Advantage
ProviderOpenAIAnthropic-
Input Token Cost (1M)$10.000$4.000Claude Opus 5.5
Output Token Cost (1M)$50.000$20.000Claude Opus 5.5
Context Window1,050k tokens1,000k tokensGPT-6 Astra
AA Intelligence Index57/10059/100Claude Opus 5.5
Streaming LatencyDeliberateFast-

Key Architectural Takeaways

  • Input Token Cost: GPT-6 Astra is $10.00/1M vs Claude Opus 5.5 at $4.00/1M
  • Output Token Cost: GPT-6 Astra is $50.00/1M vs Claude Opus 5.5 at $20.00/1M
  • Context Window: GPT-6 Astra supports 1,050k tokens vs Claude Opus 5.5 with 1,000k tokens
  • Benchmark Intelligence Rating: GPT-6 Astra scores 57/100 vs Claude Opus 5.5 at 59/100 (AA Index v5)
  • Inference Latency: GPT-6 Astra is rated Deliberate vs Claude Opus 5.5 rated Fast
Interactive Head-to-Head Simulator

Calculate Your Team's Exact Bill Difference

Drag the sliders below to see real-time cost divergences based on your daily token consumption.

Daily Input Tokens500,000 tokens
10k1M5M10M+
Daily Output Tokens250,000 tokens
5k500k2M5M+
GPT-6 AstraOpenAI
$525.00/mo
$10.00/1M in · $50.00/1M out
IQ Score57/100
Throughput47 t/s
Context1050k
Claude Opus 5.5Anthropic
60.0% Lower Cost
$210.00/mo
$4.00/1M in · $20.00/1M out
IQ Score59/100
Throughput112 t/s
Context1000k
Net Financial Advantage

Deploying Claude Opus 5.5 over GPT-6 Astra saves $315.00/mo ($3780/yr) at this volume.

See all GPT-6 Astra alternatives →

Frequently Asked Questions

Is GPT-6 Astra cheaper than Claude Opus 5.5?

Claude Opus 5.5 is significantly more economical, charging $4.00/1M input compared to $10.00/1M for GPT-6 Astra.

Which model should I choose for production?

If your primary constraint is API cost and high query throughput, choose Claude Opus 5.5. If you require peak reasoning accuracy and complex tool use, Claude Opus 5.5 is recommended.

How does context window compare between GPT-6 Astra and Claude Opus 5.5?

GPT-6 Astra offers the larger context window (1,050k tokens), allowing you to pass significantly larger codebases or documents without chunking.

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