llm model
GPT-4o vs GPT-4 Turbo
GPT-4 Turbo used to be OpenAI's default. GPT-4o replaced it in May 2024 and now dominates new deployments; Turbo is mainly kept alive for pinned production pipelines.
Contender A
GPT-4o
OpenAI's current flagship
Contender B
GPT-4 Turbo
The pre-4o production model
Side-by-side comparison
Metric
GPT-4o
GPT-4 Turbo
Modality
Text + vision + audio
Text + vision
Latency
~2× faster
Baseline
Price (input)
$5 / 1M tok
$10 / 1M tok
Recommended for new apps
Yes
No
When GPT-4o is the right pick
Any new build in 2026.
When GPT-4 Turbo is the right pick
Legacy pipelines that were tuned and validated against GPT-4 Turbo specifically.
Verdict
Use GPT-4o unless you have a specific reason to pin Turbo. It's cheaper, faster, and smarter on most evals.
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