Bring your own key

MiniMax: MiniMax M3 vs OpenAI: GPT-5.3-Codex

One key routes both. Starter credit covers your first MiniMax M3 requests, while GPT-5.3-Codex runs on your own provider key. Switch by changing the model name.

Compare routesProviders, price, context, and policy posture in one view.

Use auto when uptime mattersKeep a primary model and let fallback handle provider failures.

Same API shapeUse the OpenAI client and set the model you want.

Practical read

Monthly evidence

MiniMax: MiniMax M3 has more Credits provider routes and the larger context window. A published Credits price comparison is not available for both models. There is not enough recent probe data to compare speed.

$1.25545/1MMiniMax: MiniMax M3 cheapest route

$16.61625/1MOpenAI: GPT-5.3-Codex cheapest route

1653 msMiniMax: MiniMax M3 fastest measured p50 TTFT via lyceum

not enough dataOpenAI: GPT-5.3-Codex fastest measured p50 TTFT

The price comparison adds each route's rate for one million input tokens and one million output tokens; your cost depends on your input/output mix. Prices and live route measurements can change. Use the monthly reports when you need a stable evidence window, then run a small task-specific eval before choosing a production default.

MiniMax: MiniMax M3OpenAI: GPT-5.3-Codex

Model idminimax/minimax-m3openai/gpt-5.3-codex

Publisher MiniMax OpenAI

AI IQ IQ 115#55 IQ 112#64

Context1,048,576 tokens400,000 tokens

Credits provider routes150

Cheapest route$1.25545/1M$16.61625/1M

Cached input$0.05275/1M to $0.2532/1MNot published

Privacy posturehas ZDR routeprovider posture varies

Fastest measured p50 TTFT1653 ms via lyceumnot enough data

Highest measured throughput258 tok/s via fireworksnot enough data

Recent route uptime range100.00%not enough data

Modes chat chat

MiniMax: MiniMax M3 routes

Overview15 Credits routes
PricingInput, cached input, and output rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

OpenAI: GPT-5.3-Codex routes

Overview0 Credits routes

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Production choice

Pick a default model. Keep fallback enabled.

TrustedRouter is useful when you know the model you want, but still need provider rollover, budget limits, usage records, and a prompt path you can verify.

OpenAI clientPython

client = OpenAI(
    base_url="https://api.trustedrouter.com/v1",
    api_key="sk-tr-v1-..."
)

response = client.chat.completions.create(
    model="minimax/minimax-m3",
    messages=messages,
)

Questions

Which should I use, MiniMax: MiniMax M3 or OpenAI: GPT-5.3-Codex?

Is MiniMax: MiniMax M3 or OpenAI: GPT-5.3-Codex cheaper?

The current cheapest TrustedRouter route is $1.25545/1M for MiniMax: MiniMax M3 and $16.61625/1M for OpenAI: GPT-5.3-Codex. The comparison uses current catalog prices and updates as provider pricing changes.

Is MiniMax: MiniMax M3 or OpenAI: GPT-5.3-Codex faster?

Current measured p50 time to first token is 1653 ms for MiniMax: MiniMax M3 and not enough data for OpenAI: GPT-5.3-Codex. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test MiniMax: MiniMax M3 and OpenAI: GPT-5.3-Codex with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between minimax/minimax-m3 and openai/gpt-5.3-codex. This makes side-by-side evals possible without maintaining two provider integrations.