GPT 5 ChatvsPhi 3 Medium 4k Instruct

GPT 5 Chat leads the overall Podium Score by 11.0 points (71.0 vs 60.0).Category wins: GPT 5 Chat 0 — 0 Phi 3 Medium 4k Instruct.Phi 3 Medium 4k Instruct is the cheaper pick ($3/M vs $10/M per 1M output tokens). GPT 5 Chat is faster (50 t/s vs 50 t/s).

Key VerdictAggregated 2026 Benchmark Analysis

GPT 5 Chat is rated higher overall with a Podium Score of 71.0 (vs 60.0 for Phi 3 Medium 4k Instruct). Both models show closely matched capabilities across domain benchmarks.

Coding & Engineering
Comparable
Inference Speed
GPT 5 Chat (50 t/s)
Cost Efficiency
Phi 3 Medium 4k Instruct ($3/M/M)
MetricGPT 5 ChatPhi 3 Medium 4k Instruct
Podium Score71.0 ▲60.0
Arena Elo
Intelligence Index
Coding
Math
Reasoning
Agentic
Knowledge
Multimodal
Long-context
Output speed50 t/s50 t/s
Output price$10/M$3/M ▲
Context window128K128K
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: GPT 5 Chat vs Claude Mythos · GPT 5 Chat vs Claude Fable 5 · GPT 5 Chat vs Kimi K3 · GPT 5 Chat vs Claude Opus 5
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