Fable 5 vs o3-mini
Live Unit Economics, TTFT Latency & Reasoning Benchmark Analysis
Which model is better: Fable 5 or o3-mini?
Verified Performance & Unit Economics Delta
Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.
| Metric / Dimension | Fable 5 | o3-mini | Net Delta / Advantage |
|---|---|---|---|
| Input Cost / 1M Tokens | $2.00 | $1.10 | o3-mini is 1.8x cheaper |
| Output Cost / 1M Tokens | $8.00 | $4.40 | o3-mini (81.8% lower) |
| Avg TTFT Response Latency | 240ms | 1200ms | Fable 5 (+960ms faster) |
| SWE-bench Verified (Coding) | 58% | 49.3% | Fable 5 (+8.7% lead) |
| Inference Value Score (IVR) | 59.8 / 100 | 77 / 100 | o3-mini (+17.2 pts) |
Interactive Monthly Token Economics & ROI Forecaster
Model your expected production workload across prompt (input) and completion (output) tokens.
Estimated Monthly Spend
$2/1M in · $8/1M out
$1.1/1M in · $4.4/1M out
When to Choose Fable 5
Choose Fable 5 when you need Long-horizon multi-agent world simulations, narrative engine synthesis, interactive character memory, and creative reasoning. and have an infrastructure budget aligned with $2.00/1M tokens.
When to Choose o3-mini
Choose o3-mini when you need Cost-efficient STEM reasoning, high-throughput math problem-solving, and structured code synthesis. and prioritize OpenAI ecosystem integration at $1.10/1M tokens.
Related Questions & Decision Factors
Which is cheaper: Fable 5 or o3-mini?
o3-mini is cheaper at $1.10/1M input tokens compared to $2.00/1M for Fable 5.
Which model has lower latency: Fable 5 or o3-mini?
Fable 5 delivers faster response times with an average TTFT of 240ms vs 1200ms for o3-mini.
When should you choose Fable 5?
Choose Fable 5 when you need Long-horizon multi-agent world simulations, narrative engine synthesis, interactive character memory, and creative reasoning. and have an infrastructure budget aligned with $2.00/1M tokens.
When should you choose o3-mini?
Choose o3-mini when you need Cost-efficient STEM reasoning, high-throughput math problem-solving, and structured code synthesis. and prioritize OpenAI ecosystem integration at $1.10/1M tokens.