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GPT-5.4 Image 2 vs GPT-5.2-Codex

Detailed technical comparison between GPT-5.4 Image 2 (OpenAI) and GPT-5.2-Codex (OpenAI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

GPT-5.4 Image 2: 2 WinsvsGPT-5.2-Codex: 4 Wins
Context Leader

GPT-5.2-Codex

400,000 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

GPT-5.2-Codex

$1.75 / MTok
OpenAIactive

GPT-5.4 Image 2

[GPT-5.4](https://openrouter.ai/openai/gpt-5.4) Image 2 combines OpenAI's GPT-5.4 model with state-of-the-art image generation capabilities from GPT Image 2. It enables rich multimodal workflows, allowing users to seamlessly move between reasoning, coding, and...

View GPT-5.4 Image 2 Full Specs →
OpenAIactive

GPT-5.2-Codex

GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....

View GPT-5.2-Codex Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationGPT-5.4 Image 2GPT-5.2-Codex
ProviderOpenAIOpenAI
Context Window272,000 tokens400,000 tokens🏆
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablestable
API AvailableYesYes
Released Date2026-04-212026-01-14

API Pricing Comparison

Input Price per Million Tokens

GPT-5.4 Image 2

$8.00

GPT-5.2-Codex

$1.75

Output Price per Million Tokens

GPT-5.4 Image 2

$15.00

GPT-5.2-Codex

$14.00

💡 Cost Ratio: GPT-5.2-Codex is 4.6x cheaper per input token than GPT-5.4 Image 2.

Want to test both models live?

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Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
92.2%vs93.0%+0.8% GPT-5.2-Codex
GPT-5.4 Image 2
GPT-5.2-Codex 🏆
HumanEvalPython coding & logic synthesis
93.4%vs99.0%+5.6% GPT-5.2-Codex
GPT-5.4 Image 2
GPT-5.2-Codex 🏆
MATHComplex mathematical problem solving
80.6%vs81.4%+0.8% GPT-5.2-Codex
GPT-5.4 Image 2
GPT-5.2-Codex 🏆
GPQAGraduate-level expert reasoning
59.0%vs56.4%+2.6% GPT-5.4 Image 2
GPT-5.4 Image 2 🏆
GPT-5.2-Codex
HellaSwagCommonsense reasoning and inference
91.2%vs88.6%+2.6% GPT-5.4 Image 2
GPT-5.4 Image 2 🏆
GPT-5.2-Codex
MT-BenchMulti-turn conversation flow quality
9.4%vs9.5%+0.1% GPT-5.2-Codex
GPT-5.4 Image 2
GPT-5.2-Codex 🏆

GPT-5.4 Image 2 Quirks & Gotchas

No developer gotchas reported.

GPT-5.2-Codex Quirks & Gotchas

No developer gotchas reported.

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