gpt-5.1-2025-11-13 vs gemini-3-flash

Pricing, Performance & Features Comparison

Price unit:

gpt-5.1-2025-11-13

Authoropenai

Context Length400K

Reasoning

Providers1

ReleasedNov 2025

Knowledge Cutoff-

License-

The best model for coding and agentic tasks with configurable reasoning effort.

Input$1.3

Output$10

Latency (p50)1.6s

Output Limit128K

Function Calling

JSON Mode

Input-

Output-

openai

in$1.3out$10cache$0.13-

Latency (24h)

Success Rate (24h)

gemini-3-flash

Authorgoogle

Context Length1M

Reasoning

Providers1

ReleasedDec 2025

Knowledge CutoffJan 2025

License-

Gemini 3 Flash combines Gemini 3 Pro's reasoning capabilities with the Flash line's levels on latency, efficiency, and cost. It not only enables everyday tasks with improved reasoning, but is designed to tackle the most complex agentic workflows.

Input$0.5

Output$3

Latency (p50)4.6s

Output Limit66K

Function Calling

JSON Mode

Input-

Output-

google-vertex

in$0.5out$3--