GPT-3.5 Turbo vs Grok 4

Performance benchmarks + pricing comparison — updated April 2026

GPT-3.5 Turbo

OpenAI

Budget model for simple tasks. Being phased out but still widely used.

Input$0.500/M
Output$1.50/M
Context16K tokens
Best ForSimple chatbots, basic text generation
Benchmark40/100

Grok 4

xAI

Next-generation xAI model with enhanced reasoning and coding capability. Competes with Claude Opus and o3 Pro tier.

Input$5.00/M
Output$25.00/M
Context256K tokens
Best ForComplex reasoning, advanced coding, enterprise applications

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioGPT-3.5 TurboGrok 4Savings
Small Script (1K lines) $0.06 $0.93 GPT-3.5 Turbo saves $0.86 (93%)
Medium Feature (10K lines) $0.48 $6.75 GPT-3.5 Turbo saves $6.28 (93%)
Large Project (50K lines) $2.38 $33.75 GPT-3.5 Turbo saves $31.38 (93%)
Code Review (5K lines) $0.13 $1.50 GPT-3.5 Turbo saves $1.38 (92%)

Verdict

GPT-3.5 Turbo wins on both price and performance — $0.500/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models