SSyncDev

AI model comparison

GPT-4o vs Kimi K2.5@Eu North 1

Compare recorded price, context, output limits, speed, latency, capabilities, and input/output support. Every missing value stays visible, and unsourced benchmarks are excluded.

This GPT-4o vs Kimi K2.5@Eu North 1 comparison is designed for teams choosing between two production model records, not for declaring a universal winner. GPT-4o by OpenAI currently records 128K context, 16.4K maximum output, $2.50 input per 1M tokens, $10.00 output per 1M tokens, 110 t/s recorded output speed, 0.42s recorded time to first token. Kimi K2.5@Eu North 1 by Bedrock via Requesty records 128K context, 16K maximum output, $0.72 input per 1M tokens, $3.60 output per 1M tokens. The tables below separate documented capabilities, commercial limits, directory measurements, and source-linked benchmark evidence so you can see where the data is complete and where independent testing is still required.

Side-by-sideSpecs and pricing, compared

OpenAI

GPT-4o

OpenAI's omni-era workhorse — text and image in, text out, with a cached-input rate that halves the cost of repeated context.

Context
128K
Max output
16.4K
Input / 1M
$2.50
Output / 1M
$10.00
Output speed
110 t/s

Accepts

  • Text input
  • Image input
  • Audio input

Produces

  • Text output
Full model profileVendor docs ↗
VS

Bedrock via Requesty

Kimi K2.5@Eu North 1

Kimi K2.5 is an open-source, native multimodal agentic model built through continual pretraining on approximately 15 trillion mixed visual and text tokens atop Kimi-K2-Base. It seamlessly integrates vision and language understanding with advanced agentic capabilities, instant and thinking modes, as well as conversational and agentic paradigms.

Context
128K
Max output
16K
Input / 1M
$0.72
Output / 1M
$3.60
Output speed
—

Accepts

  • Text input
  • Image input

Produces

  • Text output
Full model profileVendor docs ↗

At a glance

Decision snapshot

This is a directional summary of the values recorded in this directory—not a universal quality verdict. Test the finalists on your own prompts before committing.

Where GPT-4o leads in recorded data

  • Maximum output: 16.4K

Where Kimi K2.5@Eu North 1 leads in recorded data

  • Input price: $0.72
  • Output price: $3.60

Context capacity

Higher listed limit

GPT-4o:128K

Kimi K2.5@Eu North 1:128K

Same recorded value

Maximum output

Higher listed limit

GPT-4o:16.4K

Kimi K2.5@Eu North 1:16K

GPT-4o

Input price

Lower recorded price

GPT-4o:$2.50

Kimi K2.5@Eu North 1:$0.72

Kimi K2.5@Eu North 1

Output price

Lower recorded price

GPT-4o:$10.00

Kimi K2.5@Eu North 1:$3.60

Kimi K2.5@Eu North 1

Output speed

Higher recorded throughput

GPT-4o:110 t/s

Kimi K2.5@Eu North 1:—

No complete comparison

Time to first token

Lower recorded latency

GPT-4o:0.42s

Kimi K2.5@Eu North 1:—

No complete comparison

Intelligence Index

Higher directory index

GPT-4o:77.5

Kimi K2.5@Eu North 1:—

No complete comparison

Evidence

Verified shared benchmarks

A score appears only when both records include a verified source. It is not treated as a universal ranking.

These two models haven't been measured on the same benchmark yet, so there's nothing meaningful to chart. Comparing scores from different tests would tell you more about the tests than the models — the specs and pricing above are the better guide here.

Specifications

Pricing, limits and capabilities

SpecificationGPT-4oKimi K2.5@Eu North 1
ProviderOpenAIBedrock via Requesty
Model familyGPT-4—
Accepted inputstext, image, audiotext, image
Produced outputstexttext
Context window128K128K
Max output16.4KRecorded lead16K
Intelligence Index77.5—
Input price / 1M$2.50$0.72Recorded lead
Output price / 1M$10.00$3.60Recorded lead
Output speed110 t/s—
Time to first token0.42s—
Reasoning modeNot documentedDocumented
Tool callingDocumentedDocumented
Image inputDocumentedDocumented
Audio inputDocumentedNot documented
Structured outputDocumentedDocumented
LicenseProprietaryNot documented
ReleasedMay 13, 2024Not documented

Workload guidance

Which model should you choose?

GPT-4o currently leads on larger maximum output. Kimi K2.5@Eu North 1 currently leads on lower recorded input price, lower recorded output price. Choose according to the constraints that matter to your workload, then run the same representative prompts against both models before making a production commitment. Neither the larger number nor the lower price is automatically the better choice: prompt quality, tool reliability, modality support, rate limits, data policy, and provider implementation can change the result. Use this page to build a shortlist, confirm current terms in the linked sources, and validate quality, latency, and cost with your own traffic.

Provenance

Sources and data limits

Prices and hosted performance can change. SyncDev records source references and clearly separates documented specifications from measured values; confirm commercial terms with the provider before deployment.

Questions people ask

It compares recorded context and output limits, token prices, output speed, time to first token, Intelligence Index, modality support, tool and structured-output capabilities, release information, and only source-linked benchmarks verified on both records. Missing information is labeled rather than inferred.

Compare a different pair

Choose any two approved model records and review them with the same evidence rules.

Open model comparison