LLMversus
OpenAI

GPT-4 1.5-mini

Complete specs, pricing, and benchmark data for GPT-4 1.5-mini by OpenAI. Last verified 2026-04-20.

JSON ModeFunctionsStreaming
Pricing

Input / 1M tokens

$0.400

Output / 1M tokens

$1.60

Context & Output

Context Window

128K

Max Output

4,096

TTFT

140ms

Speed

120 tok/s

Benchmarks

Arena ELO

1180

Coding ELO

1200

Reasoning ELO

1180

HumanEval

84

MMLU

82

MATH

60

GPQA

40

Try GPT-4 1.5-mini API

Start building with GPT-4 1.5-mini

Get API Access→

Price History (Input $/M tokens)

Strengths
  • +Affordable
  • +Fast
  • +Large context
Limitations
  • -Limited reasoning
  • -Smaller model

Best For

Cost EffectiveGeneral Purpose

Compare GPT-4 1.5-mini with...

vs Claude Opus 4vs Gemini 2.5 Provs o3vs DeepSeek R1vs o1vs Qwen 3 235B MoEvs Gemini Experimental 1206vs GPT-4.5vs DeepSeek R1 (Groq)vs Llama 4 Maverickvs DeepSeek R1 (Together)vs Grok 3
Official Pricing Page →
Your ad here