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Granite 4.1 8B vs GPT-5.2-Codex

Detailed technical comparison between Granite 4.1 8B (IBM) 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

Granite 4.1 8B: 0 WinsvsGPT-5.2-Codex: 6 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

Granite 4.1 8B

$0.05 / MTok
IBMactive

Granite 4.1 8B

Granite 4.1 8B is a dense, decoder-only 8-billion-parameter language model from IBM, part of the Granite 4.1 family. It supports a 131K-token context window and is designed for enterprise tasks...

View Granite 4.1 8B 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
SpecificationGranite 4.1 8BGPT-5.2-Codex
ProviderIBMOpenAI
Context Window131,072 tokens400,000 tokens🏆
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablestable
API AvailableYesYes
Released Date2026-04-302026-01-14

API Pricing Comparison

Input Price per Million Tokens

Granite 4.1 8B

$0.05

GPT-5.2-Codex

$1.75

Output Price per Million Tokens

Granite 4.1 8B

$0.10

GPT-5.2-Codex

$14.00

💡 Cost Ratio: Granite 4.1 8B is 35.0x cheaper per input token than GPT-5.2-Codex.

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

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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
75.4%vs93.0%+17.6% GPT-5.2-Codex
Granite 4.1 8B
GPT-5.2-Codex 🏆
HumanEvalPython coding & logic synthesis
71.6%vs99.0%+27.4% GPT-5.2-Codex
Granite 4.1 8B
GPT-5.2-Codex 🏆
MATHComplex mathematical problem solving
41.4%vs81.4%+40.0% GPT-5.2-Codex
Granite 4.1 8B
GPT-5.2-Codex 🏆
GPQAGraduate-level expert reasoning
28.8%vs56.4%+27.6% GPT-5.2-Codex
Granite 4.1 8B
GPT-5.2-Codex 🏆
HellaSwagCommonsense reasoning and inference
76.0%vs88.6%+12.6% GPT-5.2-Codex
Granite 4.1 8B
GPT-5.2-Codex 🏆
MT-BenchMulti-turn conversation flow quality
7.9%vs9.5%+1.6% GPT-5.2-Codex
Granite 4.1 8B
GPT-5.2-Codex 🏆

Granite 4.1 8B Quirks & Gotchas

No developer gotchas reported.

GPT-5.2-Codex Quirks & Gotchas

No developer gotchas reported.

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