Compare/Gemma 4 E2B vs GPT-5.3 Codex (xhigh)

Gemma 4 E2BvsGPT-5.3 Codex (xhigh)

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

Google

Gemma 4 E2B

Input
$0/M
Output
$0/M
Speed
TTFT
OpenAI

GPT-5.3 Codex (xhigh)

Input
$1.75/M
Output
$14/M
Speed
65 tok/s
TTFT
62.96s

Winner by Category

Cheaper
Gemma 4 E2B
Faster (tok/s)
GPT-5.3 Codex (xhigh)
Lower Latency
Gemma 4 E2B
Benchmarks (0-7)
GPT-5.3 Codex (xhigh)

Pricing Comparison

MetricGemma 4 E2BGPT-5.3 Codex (xhigh)
Input ($/M tokens)$0$1.75
Output ($/M tokens)$0$14
Cost for 1M input + 100K output tokens:
Gemma 4 E2B$0.00
GPT-5.3 Codex (xhigh)$3.15

Speed Comparison

Output Speed (tokens/s) — higher is better
Gemma 4 E2B
GPT-5.3 Codex (xhigh)
65 tok/s
Time to First Token (seconds) — lower is better
Gemma 4 E2B
GPT-5.3 Codex (xhigh)
62.96s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
15.254.0
Coding Index
9.053.1
Math Index
GPQA Diamond
43.3%91.5%
MMLU-Pro
LiveCodeBench
AIME 2025
MATH-500
Humanity's Last Exam
4.8%39.9%
SciCode
20.9%53.2%
IFBench
38.0%75.4%
TerminalBench
3.0%53.0%
Gemma 4 E2B0 wins
7 winsGPT-5.3 Codex (xhigh)

Frequently Asked Questions

Which is cheaper, Gemma 4 E2B or GPT-5.3 Codex (xhigh)?

Gemma 4 E2B is cheaper overall. Its blended price (3:1 input/output ratio) is $0.00/M tokens vs $4.81/M for GPT-5.3 Codex (xhigh).

Which model performs better on benchmarks?

GPT-5.3 Codex (xhigh) wins 7 out of 12 benchmarks compared to 0 for Gemma 4 E2B. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

GPT-5.3 Codex (xhigh) generates tokens faster at 65 tok/s vs 0 tok/s. Gemma 4 E2B also has lower time-to-first-token (0.00s vs 62.96s).

When should I use Gemma 4 E2B vs GPT-5.3 Codex (xhigh)?

Choose based on your priorities: Gemma 4 E2B for lower cost, GPT-5.3 Codex (xhigh) for stronger benchmark performance, and GPT-5.3 Codex (xhigh) for faster generation. For latency-sensitive apps, check the TTFT comparison above.