API cost decision in 10 seconds

GPT-5.3-Codex vs MiniMax M2

Pick MiniMax M2 for lower cost; pick GPT-5.3-Codex only if the larger context window matters more.

Pricing data updated:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick MiniMax M2 for lower cost; pick GPT-5.3-Codex only if the larger context window matters more.

On the standard 1M input plus 500K output workload, MiniMax M2 is estimated at $0.76 vs $8.75 for GPT-5.3-Codex, saving $8 (91.4% lower).

Cost-first pickMiniMax M2
Context-first pickGPT-5.3-Codex
Sample savings$891.4%
10x traffic gap$79.95

GPT-5.3-Codex has more context, but MiniMax M2 saves $8 on the standard workload. At 10x that traffic, the same price gap is about $79.95. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

MiniMax M2 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickGPT-5.3-CodexMiniMax M2
Input-heavy / RAG 5M input + 500K output MiniMax M2 $15.75 $1.77
Balanced workload 1M input + 1M output MiniMax M2 $15.75 $1.25
Output-heavy chatbot 1M input + 5M output MiniMax M2 $71.75 $5.25
Cheaper inputMiniMax M2$1.75 vs $0.26 / 1M
Cheaper outputMiniMax M2$14 vs $1 / 1M
Larger contextGPT-5.3-Codex400K vs 204.8K
Sample workloadMiniMax M2$8.75 vs $0.76

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
GPT-5.3-CodexCalculating…Estimated API cost
MiniMax M2Calculating…Estimated API cost
Cheaper for this workloadCalculating…Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

MiniMax M2 has the lower input price, MiniMax M2 has the lower output price, and GPT-5.3-Codex offers the larger context window.

For a 1M input token plus 500K output token workload, the estimated API cost is $8.75 for GPT-5.3-Codex and $0.76 for MiniMax M2.

Best Fit

Choose GPT-5.3-Codex when you care most about larger context window.

Choose MiniMax M2 when you care most about lower input-token price, and lower output-token price.

Head-to-Head Specs
FeatureGPT-5.3-Codex
(OpenAI)		MiniMax M2
(MiniMax)
Input Price
prompt tokens per 1M		$1.75$0.26
Completion Price
per 1M tokens		$14$1
Sample Workload Cost
1M input + 500K output		$8.75$0.76
Context Window400K204.8K
Release Date2026-02-242025-10-23
GPT-5.3-Codex

GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results...

MiniMax M2

MiniMax-M2 is a compact, high-efficiency large language model optimized for end-to-end coding and agentic workflows. With 10 billion activated parameters (230 billion total), it delivers near-frontier intelligence across general reasoning,...

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionMiniMax M2On the standard 1M input plus 500K output workload, MiniMax M2 is estimated at $0.76 vs $8.75 for GPT-5.3-Codex, saving $8 (91.4% lower).
High-volume input processingMiniMax M2Lower prompt-token price matters most when prompts or retrieved passages dominate the bill.
Long responses and chatbotsMiniMax M2Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workGPT-5.3-CodexA larger context window leaves more room for retrieved passages and source files.