Model Compare

Compare any two models side-by-side

Price, context window, quality score, speed, latency and capabilities — all in one view to help you pick the right model for your workload.

Claude Opus 4.8Anthropic

Live — claude-opus-latest, AKL-claude-opus-4-8.

98Quality
66Speed
+48.2%
Weekly
GPT-5.5OpenAI

OpenAI's flagship model for professional workloads.

95Quality
74Speed
+18.6%
Weekly
💰 Cost Calculator
Monthly tokens:
Claude Opus 4.8
$18.05
per 1.0M tokens (30% in / 70% out)
GPT-5.5
$7.75
per 1.0M tokens (30% in / 70% out)
57% cheaper
Metric
Claude Opus 4.8
GPT-5.5
Provider
Anthropic
OpenAI
Input price /M
$4.75
$2.50
Output price /M
$23.75
$10.00
Context window
1M tokens
256K tokens
Quality score
98
95
Speed score
66
74
Avg latency
~1180ms
~740ms
Weekly trend
+48.2%
+18.6%
Capabilities
Capability
Chat
Vision
Code
Reasoning
Function Calling
Claude Opus 4.8
GPT-5.5

🧠 AMA Recommendation

Best Quality
Claude Opus 4.8
Quality score 98
Best Value
GPT-5.5
57% less expensive
Fastest
GPT-5.5
Speed score 74
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