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Comparison · 3 models · Updated Oct 4, 2026

Mixtral 8x22B vs Nova Pro vs GPT-4o

Nova Pro comes out ahead, 48 to 43 and 33 on our weighted score, and it is the cheaper option too.

  1. Mistral AI

    Mixtral 8x22B

    Released Apr 17, 2024

    33/100
    • ECI122.0
    • Price$2.00 / $6.00
    • Context64K
    Full specs Remove Mixtral 8x22B
  2. Our pick

    Amazon

    Nova Pro

    Released Dec 3, 2024

    48/100
    • ECI123.8
    • Price$0.80 / $3.20
    • Context300K
    Full specs Remove Nova Pro

  3. OpenAI

    GPT-4o

    Released May 13, 2024

    43/100
    • ECI129.0
    • Price$2.50 / $10.00
    • Context128K
    Full specs Remove GPT-4o
01 — Verdict

Nova Pro is our pick

Nova Pro is the better all-round choice, scoring 48/100 against GPT-4o (43) and Mixtral 8x22B (33). It leads on price and context window. GPT-4o wins on capability. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGPT-4oCapabilities Index (ECI): GPT-4o 129.0 · Nova Pro 123.8 · Mixtral 8x22B 122.0
  • Lowest priceNova ProNova Pro $1.40 · Mixtral 8x22B $3.00 · GPT-4o $4.38 per 1M tokens (3:1 blend)
  • Longest contextNova ProNova Pro 300,000 · GPT-4o 128,000 · Mixtral 8x22B 64,000 tokens
  • Widest inputsNova ProMixtral 8x22B: Text · Nova Pro: Text, Images, PDFs, Video · GPT-4o: Text, Images, PDFs
  • Self-hostingMixtral 8x22BPublishes downloadable weights
How the score is built
MeasureWeightMixtral 8x22BNova ProGPT-4o
CapabilityCapabilities Index (ECI)50%434552
Price25%274319
Inputs & features15%257070
Context window10%123924
Overall100%33/10048/10043/100
02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Mixtral 8x22B vs Nova Pro vs GPT-4o specifications side by side
SpecificationMixtral 8x22BMistral AINova ProAmazonGPT-4oOpenAI
Capability
Capabilities Index (ECI)122.0123.8129.0 (best)
ECI rank#139 of 148#137 of 148#129 of 148 (best)
GPQA DiamondGraduate-level science questions34.1%—48.9% (best)
OTIS Mock AIME 2024–2025Competition mathematics——6.3%
Price per million tokens
Input$2.00$0.80 (best)$2.50
Output$6.00$3.20 (best)$10.00
Cached input—$0.20 (best)$1.25
Blended (3:1)$3.00$1.40 (best)$4.38
Long-context rateSame rateSame rateSame rate
Price sourceOfficial Mistral APIOfficial Amazon Bedrock APIOfficial OpenAI API
Limits
Context window64,000 tokens300,000 tokens (best)128,000 tokens
Max output64,000 tokens (best)10,000 tokens16,384 tokens
Inputs and features
TextYesYesYes
ImagesNoYesYes
PDFsNoYesYes
AudioNoNoNo
VideoNoYesNo
ReasoningNoNoNo
Tool callingYesYesYes
Structured outputNoNoYes
Availability
WeightsOpenProprietaryProprietary
API model IDopen-mixtral-8x22bamazon.nova-pro-v1:0gpt-4o
API providers1319 (best)
ReleasedApr 17, 2024Dec 3, 2024May 13, 2024
Knowledge cutoffApr 2024Oct 2024Sep 2023
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Mixtral 8x22B$32.00
  • Nova Pro$14.40
  • GPT-4o$45.00
04 — Questions

Which should you choose?

Which is better: Mixtral 8x22B, Nova Pro or GPT-4o?

Nova Pro is the better all-round choice, scoring 48/100 against GPT-4o (43) and Mixtral 8x22B (33). It leads on price and context window. GPT-4o wins on capability. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Mixtral 8x22B, Nova Pro or GPT-4o?

Nova Pro is cheaper at $0.80 input / $3.20 output per million tokens (official Amazon Bedrock API price). Mixtral 8x22B costs $2.00 input / $6.00 output per million tokens (official Mistral API price); GPT-4o costs $2.50 input / $10.00 output per million tokens (official OpenAI API price). At a typical mix of three input tokens to one output token, that is $1.40 per million tokens for Nova Pro versus $3.00 for Mixtral 8x22B (2.1× as much) and $4.38 for GPT-4o (3.1× as much).

Which scores higher on benchmarks?

GPT-4o scores higher on the Capabilities Index (ECI): GPT-4o 129.0 (#129 of 148), Nova Pro 123.8 (#137 of 148) and Mixtral 8x22B 122.0 (#139 of 148). The confidence ranges of the top two overlap (124.2–131.5 vs 108.8–126.6), so treat the gap as small.

Which is better for coding?

There are no published SWE-bench Verified results for Mixtral 8x22B, Nova Pro and GPT-4o yet, so there is no like-for-like coding score. On overall capability, GPT-4o leads, which tends to carry over to coding, but test on your own codebase. All three support tool calling for agent workflows.

Which has the bigger context window?

Nova Pro has the largest context window at 300,000 tokens, against 128,000 for GPT-4o and 64,000 for Mixtral 8x22B. Maximum output per response: Mixtral 8x22B up to 64,000, Nova Pro up to 10,000, GPT-4o up to 16,384 tokens.

Which can read images, PDFs, audio or video?

Mixtral 8x22B accepts text; Nova Pro accepts text, images, PDFs and video; GPT-4o accepts text, images and PDFs. Nova Pro handles the widest range of inputs.

Are any of these open source?

Mixtral 8x22B publishes its weights and can be self-hosted; Nova Pro and GPT-4o is proprietary.

Which is newer?

Nova Pro is the newest, released Dec 3, 2024. GPT-4o came out May 13, 2024; Mixtral 8x22B came out Apr 17, 2024. Knowledge cutoff: Mixtral 8x22B Apr 2024, Nova Pro Oct 2024, GPT-4o Sep 2023.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.

05 — Keep comparing

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