Gemini 3.7 Flash vs GPT-5.4

API pricing, benchmark indices and specs — updated 19 October 2026.

google · A · API-only
Input / 1M
$0.75
Output / 1M
$3.75
AA index
39.6
proprietary · 1M context
openai · B · API-only
Input / 1M
$2.50
Output / 1M
$15.00
AA index
39
proprietary · 1.0M context

Specification comparison

Differences are highlighted; identical values are muted.

Specification Gemini 3.7 Flash GPT-5.4
Deployment API-only (closed weights) API-only (closed weights)
Parameters n/a — API-only n/a — API-only
Architecture n/a — API-only n/a — API-only
Context length 1,048,576 1,050,000
Licence Proprietary Proprietary
Commercial use Per API terms Per API terms
Languages n/a — API-only n/a — API-only
Downloads 30d n/a — API-only n/a — API-only
Downloads all time n/a — API-only n/a — API-only
Quantizations on the Hub n/a — API-only n/a — API-only
Gated n/a — API-only n/a — API-only
First seen on the Hub n/a — API-only n/a — API-only
API input price / 1M tokens $0.75 $2.50
API output price / 1M tokens $3.75 $15.00
Est. cost per 1M input + 1M output tokens $4.50 $17.50
Cached input / 1M tokens $0.075 $0.25
AA Intelligence Index 39.6 39
AA Coding Index 71.5 71.1
AA Agentic Index — —
Max output tokens 65,536 128,000
API providers 2 3
Tool calling Yes Yes
Reasoning mode Yes Yes

API cost

Estimated cost of 1M input + 1M output tokens via OpenRouter

Gemini 3.7 Flash $4.50
GPT-5.4 $17.50

Gemini 3.7 Flash is 3.9× cheaper at list price.

Adjacent comparisons