Claude Fable 5 vs Step 3.7 Flash
Claude Fable 5 (Anthropic) and Step 3.7 Flash (StepFun) compared on benchmarks, pricing, context window, and use-case rankings.
- Step 3.7 Flash is cheaper on input tokens — $0.20 vs $10.00 per 1M.
- Claude Fable 5 has a larger context window (1M vs 256K tokens).
- Claude Fable 5 ranks higher for coding (100th vs 32th percentile).
Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.
Frequently asked questions
Which is cheaper, Claude Fable 5 or Step 3.7 Flash?
Step 3.7 Flash is cheaper on input tokens at $0.20 per million, versus $10.00 (representative OpenRouter pricing).
Which has a larger context window, Claude Fable 5 or Step 3.7 Flash?
Claude Fable 5 supports up to 1M tokens, compared with 256K for the other.
Which is better for coding, Claude Fable 5 or Step 3.7 Flash?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, Claude Fable 5 ranks higher — 100th vs 32th percentile among the models tracked on Model Beat.
Want a different match-up? Open the compare tool to add or swap models.
More comparisons
Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.