head-to-head · model vs model
Step 3.7 Flash vs Claude Sonnet 4.6
Live matchup data for Step 3.7 Flash and Claude Sonnet 4.6: OpenRouter usage, pricing, benchmark scores, and community sentiment, refreshed daily. No verdicts — read the tape.
share of openrouter tokens
as of Jul 7, 2026 · Δ vs ≥7d prior
usage share — openrouter model rankings
Usage crossover
current leader: Step 3.7 Flash
source: OpenRouter model rankings · daily · 90d · ○ 7 lead changes
through Jul 7, 2026
side by side
Spec & pricing
| Spec | Step 3.7 Flash | Claude Sonnet 4.6 |
|---|---|---|
| Vendor | StepFun | Anthropic |
| Homepage | openrouter.ai | openrouter.ai |
| Context window | 256K tokens | 1M tokens |
| Input price | $0.2/MTok | $3.00/MTok |
| Output price | $1.15/MTok | $15.00/MTok |
| Cache read | $0.04/MTok | $0.3/MTok |
| Price as of | Jul 8, 2026 · openrouter | Jul 8, 2026 · openrouter |
sources: provider pages · OpenRouter · GitHub · package registries
— = not tracked / not applicable
head to head
Benchmarks
| Benchmark | Step 3.7 Flash | Claude Sonnet 4.6 | Source |
|---|---|---|---|
| aa-agentic-index | 21.5 index— · stepfun/step-3.7-flash | 40.8 index— · anthropic/claude-sonnet-4.6 | openrouter.ai |
| aa-coding-index | 37.3 index— · stepfun/step-3.7-flash | 63 index— · anthropic/claude-sonnet-4.6 | openrouter.ai |
| aa-intelligence-index | 29.7 index— · stepfun/step-3.7-flash | 47.2 index— · anthropic/claude-sonnet-4.6 | openrouter.ai |
best tracked score per benchmark · scores are not directly comparable across benchmarks
sources linked per row
community pulse
Reddit sentiment
| Signal | Step 3.7 Flash | Claude Sonnet 4.6 |
|---|---|---|
sentiment feed pending — Reddit pulse lands with the daily crawl | ||
source: Reddit mentions, LLM-classified sentiment · trailing 30d
awaiting first crawl
faq
Frequently asked
- Is Step 3.7 Flash more used than Claude Sonnet 4.6?
- As of Jul 7, 2026, Step 3.7 Flash shows 2.5% of OpenRouter token volume and Claude Sonnet 4.6 shows 2% of OpenRouter token volume. The chart above tracks the full daily series with every lead change marked.
- How does Step 3.7 Flash pricing compare to Claude Sonnet 4.6?
- Step 3.7 Flash runs $0.2 per million input tokens and $1.15 per million output tokens (as of Jul 8, 2026). Claude Sonnet 4.6 runs $3.00 per million input tokens and $15.00 per million output tokens (as of Jul 8, 2026). Full plan and per-token detail is in the spec table above, each with its source and capture date.
- How do Step 3.7 Flash and Claude Sonnet 4.6 score on coding benchmarks?
- On aa-agentic-index, Step 3.7 Flash scores 21.5 index (—) and Claude Sonnet 4.6 scores 40.8 index (—). All tracked results and their sources are in the benchmark table above.
- Where does this comparison data come from?
- OpenRouter public rankings (usage), provider pricing pages (plans and per-token prices), GitHub and package registries (adoption), public benchmark leaderboards, and Reddit (sentiment). Every stored datum keeps its source URL, and the tape refreshes daily. The Token Tape publishes the data without declaring a winner.
alerts
Get the weekly tape — usage moves, price changes, and new benchmark results for tracked matchups.