modelfax
Compare/GPT-5.5 vs Step 3.7 Flash

GPT-5.5 vs Step 3.7 Flash

OpenAIActive

GPT-5.5

$0.19 / $1.13 · 1,050,000 ctx · 45 providers
StepFunActive

Step 3.7 Flash

$0.18 / $1.11 · 262,144 ctx · 18 providers
01Differences

At a glance

Computed automatically from tracked data.

• GPT-5.5's input price is 1% lower than Step 3.7 Flash's ($0.19 vs $0.18 per 1M).
• GPT-5.5's output price is 1% lower than Step 3.7 Flash's ($1.13 vs $1.11 per 1M).
• GPT-5.5 has a 4× larger context window (1,050,000 vs 262,144 tokens).
• They differ in open weights (GPT-5.5: No, Step 3.7 Flash: Yes).
02Specs

Side by side

GPT-5.5Step 3.7 Flash
Input / 1M$0.19$0.18
Output / 1M$1.13$1.11
Context1,050,000262,144
Max output128,000262,144
Providers4518
Released2026-04-232026-05-29
03Prices

Common providers

ProviderGPT-5.5Step 3.7 Flash
edenai$5.00 / $30.00$0.20 / $1.15
kenariNot listed / Not listedNot listed / Not listed
kilo$5.00 / $30.00$0.20 / $1.15
nano-gpt$5.00 / $30.00$0.20 / $1.15
openrouter$5.00 / $30.00$0.20 / $1.15
requesty$5.50 / $33.00$0.20 / $1.15
unorouter$0.19 / $1.13Free / Free
vercel$5.00 / $30.00$0.20 / $1.15
zenmux$5.00 / $30.00$0.20 / $1.15
04History

Recent changes

GPT-5.5
2026-09-10 — Context amazon-bedrock
2026-09-08 — Added 302ai
2026-09-06 — Context nano-gpt
2026-08-27 — Price up requesty
2026-08-27 — Price up requesty
Step 3.7 Flash
2026-09-01 — Added edenai
2026-08-27 — Added kenari
2026-08-27 — Added kenari
2026-08-27 — Price up requesty
2026-08-27 — Price up requesty
as of 2026-09-16
About ·Corrections ·Contact ·Privacy ·EN / 中文 / 繁體
HomeModelsLabsProvidersToolsRankingsChangesNews