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Mellum vs Ox Alpha

Mellum

JetBrains

22#397
vs
Ox Alpha

stealth

20#398
Signal-by-Signal Comparison
SignalMellumDeltaOx Alpha
Capabilities
17
-67
83
Pricing
100
--
100
Context window size
0
-95
96
Recency
51
-49
100
Output Capacity
20
-65
85
Benchmarks
0
-17
17
Overall Result
0 wins
of 6
5 wins
Ox Alpha wins 5 of 6 signals

Score History

Score History (23 data points)
MellumOx Alpha
Mellum

21.6

current score

Leader

Mellum

right now

Ox Alpha

20.3

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

Mellum

JetBrains

Per request$0.000000
Daily$0.00
Monthly$0.00
Annual$0.00

Ox Alpha

stealth

Per request$0.000000
Daily$0.00
Monthly$0.00
Annual$0.00
Mellum pricing:
Input:$0.00/M tokens
Output:$0.00/M tokens
Ox Alpha pricing:
Input:$0.00/M tokens
Output:$0.00/M tokens
Winner
Mellum

JetBrains

22

Composite Score

Ox Alpha

stealth

20

Composite Score

Signal-by-Signal Comparison
MetricMellumOx AlphaWinner
Overall Score
22
20
Mellum
Rank#397#398
Mellum
Quality Rank#397#398
Mellum
Adoption Rank#397#398
Mellum
Parameters------
Context Window--1049K--
PricingFreeFree--
Signal Scores
Capabilities
17
83
Ox Alpha
Pricing
100
100
Mellum
Context window size
0
96
Ox Alpha
Recency
51
100
Ox Alpha
Output Capacity
20
85
Ox Alpha
Benchmarks--
17
Ox Alpha
Benchmark Head-to-Head(3 benchmarks)
Mellum: 0Ox Alpha: 0
Mellum
Ox Alpha
Normalized 0-100%
MMLU-Pro
-22.25%
IFEval
-28.03%
BBH
-8.66%
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

MellumLimited

Scores 22/100 (rank #397), placing it in the top -37% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Ox AlphaLimited

Scores 20/100 (rank #398), placing it in the top -37% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

With only a 1-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.

When to Use Each Model

Choose Mellum when you need:

  • Budget-friendly applications with moderate quality requirements

Choose Ox Alpha when you need:

  • Processing long documents or large codebases (1049K token context)
  • Multimodal workflows that require image understanding
  • Agentic applications using tool/function calling
  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
Mellum
Input cost$0.00/M tokens
Output cost$0.00/M tokens
Cost per quality point$0.000
Est. monthly (1M tokens/day)$0.00
Ox Alpha
Input cost$0.00/M tokens
Output cost$0.00/M tokens
Cost per quality point$0.000
Est. monthly (1M tokens/day)$0.00

Both models are priced similarly, so the decision comes down to quality and features rather than cost.

Latency & Speed
MellumFaster
Speed score0/100
Ox Alpha
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

Mellum

Customer support chatbot

Suitable for user-facing chat with competitive response times. Mellum also offers lower per-token costs for high-volume support

Mellum

Long document analysis

Larger context window (1049K tokens) can process longer documents, contracts, and research papers in a single pass

Ox Alpha

Batch data extraction

Lower output pricing ($0.00/M) reduces costs when processing thousands of records daily

Mellum

Creative writing & content

Higher overall composite score (22/100) correlates with better nuance, coherence, and style in long-form content

Mellum

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

Ox Alpha
Which Should You Choose?
Our recommendation:
Mellum

Mellum and Ox Alpha are extremely close in overall performance (only 1.3000000000000007 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.

Mellum
Recommended

by JetBrains

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Cost - 0% lower pricing; better value at scale
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by stealth

Consider for specialized use cases.

Capability Comparison
CapabilityMellumOx Alpha
Vision (Image Input)differs
Function Callingdiffers
Streaming
JSON Modediffers
Reasoningdiffers
Web Search
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Mellum

JetBrains

$0.000000
estimated monthly cost

Ox Alpha

stealth

$0.000000
estimated monthly cost

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterMellumOx Alpha
Context Window--1.0M
Max Output Tokens--131,072
Open SourceNoNo
CreatedJun 1, 2025Aug 20, 2026
Last updated: 41m ago

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