Claude 3.5 Haiku vs GPT-5.6 Luna
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: Claude 3.5 Haiku or GPT-5.6 Luna?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | Claude 3.5 Haiku | GPT-5.6 Luna | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $0.80 | $0.18 | GPT-5.6 Luna is 4.4x cheaper |
| Output Cost / 1M Tokens | $4.00 | $0.72 | GPT-5.6 Luna (455.6% lower) |
| Avg TTFT Response Latency | 140ms | 90ms | GPT-5.6 Luna (+50ms faster) |
| SWE-bench Verified (Coding) | 40.6% | 48.5% | GPT-5.6 Luna (+7.9% lead) |
| Inference Value Score (IVR) | 70.4 / 100 | 99.9 / 100 | GPT-5.6 Luna (+29.5 pts) |
Interactive Monthly Token Economics & ROI Forecaster
Model your expected production workload across prompt (input) and completion (output) tokens.
Estimated Monthly Spend
$0.8/1M in · $4/1M out
$0.18/1M in · $0.72/1M out
When to Choose Claude 3.5 Haiku
Choose Claude 3.5 Haiku when you need High-speed API routing, conversational triage, extraction, and edge agent tasks. and have an infrastructure budget aligned with $0.80/1M tokens.
When to Choose GPT-5.6 Luna
Choose GPT-5.6 Luna when you need Real-time conversational agents, high-volume classification, intent detection, and low-latency interactive apps. and prioritize OpenAI ecosystem integration at $0.18/1M tokens.
Related Questions & Decision Factors
Which is cheaper: Claude 3.5 Haiku or GPT-5.6 Luna?
GPT-5.6 Luna is cheaper at $0.18/1M input tokens compared to $0.80/1M for Claude 3.5 Haiku.
Which model has lower latency: Claude 3.5 Haiku or GPT-5.6 Luna?
GPT-5.6 Luna delivers faster response times with an average TTFT of 90ms vs 140ms for Claude 3.5 Haiku.
When should you choose Claude 3.5 Haiku?
Choose Claude 3.5 Haiku when you need High-speed API routing, conversational triage, extraction, and edge agent tasks. and have an infrastructure budget aligned with $0.80/1M tokens.
When should you choose GPT-5.6 Luna?
Choose GPT-5.6 Luna when you need Real-time conversational agents, high-volume classification, intent detection, and low-latency interactive apps. and prioritize OpenAI ecosystem integration at $0.18/1M tokens.