Which is cheaper, MiniMax M3 and Nemotron 3 Ultra 550B A55B?

MiniMax M3 has the lowest input price. Per 1M input tokens: MiniMax M3 from $0.28 and Nemotron 3 Ultra 550B A55B from $0.50.

Which has the larger context window, MiniMax M3 and Nemotron 3 Ultra 550B A55B?

MiniMax M3 has the largest context window: MiniMax M3 1,000,000 tokens and Nemotron 3 Ultra 550B A55B 262,144 tokens.

Can I switch between MiniMax M3 and Nemotron 3 Ultra 550B A55B without changing my code?

Yes. All of them are served through FastRouter's OpenAI-compatible API, so switching is a change of the model parameter (minimax/minimax-m3, nvidia/nemotron-3-ultra-550b-a55b).

MiniMax M3 vs Nemotron 3 Ultra 550B A55B

Side-by-side pricing per provider, context window, benchmark scores and speed, all on one OpenAI-compatible API.

Estimate monthly cost for these models

MiniMax M3 Minimaxminimax/minimax-m3

Nemotron 3 Ultra 550B A55B NVIDIAnvidia/nemotron-3-ultra-550b-a55b

Creator

Minimax

NVIDIA

Released

May 31, 2026

May 16, 2026

Context window

262K

Max output

512K

16K

Input / 1MLowest provider price

$0.28$0.28–$0.30 across 2

$0.50

Output / 1MLowest provider price

$1.10$1.10–$1.20 across 2

$2.20

Providers

IntelligenceArtificial Analysis index

18.9

11.8

LatencyMedian time to first token

3.1s

—

ThroughputMedian tokens per second

<1 t/s

—

Accepts

Text, Image, Video

Text

Produces

Text

Tool calling

Yes

Structured output

Yes

Reasoning

Yes

MiniMax M3 vs Nemotron 3 Ultra 550B A55B: summary

MiniMax M3 and Nemotron 3 Ultra 550B A55B are both available through FastRouter's OpenAI-compatible API, so switching between them is a change of model id, not a new integration.

MiniMax M3, from Minimax, has a 1,000,000-token context window, costs from $0.28/1M input and $1.10/1M output tokens across 2 providers and scores 18.9 on the Artificial Analysis Intelligence Index.

Nemotron 3 Ultra 550B A55B, from NVIDIA, has a 262,144-token context window, costs $0.50/1M input and $2.20/1M output tokens and scores 11.8 on the Artificial Analysis Intelligence Index.

MiniMax M3 is the cheapest on input, 1.8× cheaper than the next model, MiniMax M3 has the largest context window and MiniMax M3 scores highest for intelligence.

Switch with one line

client = OpenAI(base_url="https://api.fastrouter.ai/api/v1", api_key="<FASTROUTER_API_KEY>") client.chat.completions.create(model="minimax/minimax-m3", messages=[...]) # or client.chat.completions.create(model="nvidia/nemotron-3-ultra-550b-a55b", messages=[...])

Full API docs

Frequently asked questions

More comparisons

Benchmark scores sourced from ArtificialAnalysis