o3

o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following. Use it to think through multi-step problems that involve analysis across text, code, and images.

openai/o3

Organization: OpenAI
Family: o
Providers: 17
Context: 200,000
Output limit: 100,000
Knowledge: 2024-05
Release: 2025-04-16
Updated: 2025-04-16
Weights: Closed
Input: text, image, pdf
Output: text
Capabilities: Tools, Reasoning, Structured

Providers

Compare every cataloged offer for this model, including its provider, route, token limits, price, and capabilities.

17 offers · USD per million tokens

Provider	Model ID	Context	Output	Input / output · 1M	Reasoning	Tools	Structured	Details
302.AI	o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	Yes	View
Abacus	o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	Yes	View
AIHubMix	o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	Yes	View
AnyAPI	openai/o3	200,000	100,000	— / —	Yes	Yes	Yes	View
Azure	o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	—	View
Azure Cognitive Services	o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	—	View
Cloudflare AI Gateway	openai/o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	Yes	View
DevPass (LLM Gateway)	o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	Yes	View
Eden AI	openai/o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	Yes	View
Impossibl	openai/o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	Yes	View
Kilo Gateway	openai/o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	Yes	View
LLM Gateway	openai/o3	200,000	100,000	$2.00 / $8.00	No	No	Yes	View
Merge Gateway	openai/o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	Yes	View
NanoGPT	openai/o3	200,000	100,000	$2.00 / $8.00	Yes	No	No	View
NEAR AI Cloud	openai/o3	200,000	100,000	$2.00 / $8.00	Yes	Yes	Yes	View
OpenAIvia OpenRouter	openai/o3 unknown	200,000	100,000	$2.00 / $8.00	Yes	Yes	Yes	View
Vercel AI Gateway	openai/o3-fast	200,000	100,000	$3.50 / $14.00	Yes	Yes	Yes	View

Prices and limits apply to each offer. A dash means the value is not provided. OpenRouter offers show the hosting provider and routing channel separately.

Pricing

Compare token rates and cache charges across available routes and hosting configurations.

USD per million tokens

Input from$2.00Per 1M input tokens

Output from$8.00Per 1M output tokens

Available offers17Across 17 providers

Lowest listed input and output prices across the offers above; they may belong to different providers. These are base rates, before conditional pricing, discounts or additional fees.

Endpoint price comparisonLatest observed snapshot · 1 lowest-priced configuration

InputOutput

OpenAIopenai

$2.00$8.00

openai/o3Observed Oct 4, 2026, 11:31 AM UTC

Input: $2.00
Output: $8.00
Cache read: $0.50

Additional fees and pricing conditions

web search: $0.01 / search

Hosting prices through OpenRouter All endpoints and cache rates

Endpoint	Input / 1M	Output / 1M	Cache read / 1M	Cache write / 1M
OpenAIopenai	$2.00	$8.00	$0.50	—

Each row is a hosting configuration. Open an offer in Providers for its full pricing conditions and additional fees. Endpoint observations may differ from the routing catalog's base price.

Performance

Review reported latency and output-throughput percentiles from the latest observed rolling window.

Latest 30-minute observation

Time to first token · milliseconds

Latency distributionRolling 30-minute snapshot · 1 endpoint

P50P75P90P99

OpenAIopenai

2,178.5–5,215.12 ms

All latency percentiles 1 endpoints

Endpoint	P50	P75	P90	P99
OpenAIopenai	2,178.5 ms	2,701 ms	3,484.6 ms	5,215.12 ms

Output throughput · tokens per second

Throughput distributionRolling 30-minute snapshot · 1 endpoint

P50P75P90P99

OpenAIopenai

61–173 t/s

All throughput percentiles 1 endpoints

Endpoint	P50	P75	P90	P99
OpenAIopenai	61 t/s	85 t/s	131 t/s	173 t/s

Percentiles describe the observed request distribution. These are snapshots of a rolling window, not a historical time series.

Uptime

Compare successful request rates across the latest 5-minute, 30-minute, and 24-hour observations.

Successful requests by window

Availability by endpointCurrent overlapping windows · 1 endpoint

Endpoint5 minutes30 minutes24 hours

OpenAIopenaiObserved Oct 4, 2026, 11:31 AM UTC

—

100%

Reported by OpenRouter at the time of collection; rate-limited requests are excluded. A dash means no measurement was reported. This is not a live availability check.

Benchmarks

Review attributed evaluation results on each source's original scale.

External evaluations

openai/o3Observed Oct 4, 2026, 11:31 AM UTC

Design Arena	Category	Elo	Win rate	Rank
models	codecategories	1,026	51.9%	109
models	dataviz	1,200	48.1%	54
models	gamedev	1,047	56.9%	104
models	uicomponent	1,023	53.3%	106
models	website	1,043	53.8%	111

Sources: Artificial Analysis and Design Arena, via OpenRouter. Scores retain their original scales and are not OpenAI Suite ratings.

Detailed evaluations

Evaluation	Configuration	Source	Results	Details
models · codecategories	o3openai/o3-2025-04-16	Design Arena	1,026 Elo	Details
models · dataviz	o3openai/o3-2025-04-16	Design Arena	1,200 Elo	Details
models · gamedev	o3openai/o3-2025-04-16	Design Arena	1,047 Elo	Details
models · uicomponent	o3openai/o3-2025-04-16	Design Arena	1,023 Elo	Details
models · website	o3openai/o3-2025-04-16	Design Arena	1,043 Elo	Details

Sources: Artificial Analysis, Design Arena and OpenRouter. Evaluation configurations and scales differ; results are not interchangeable. Updated Oct 4, 2026.

Technical details & API

Explore specifications, supported parameters, reasoning controls, and API identifiers for each OpenRouter route.

Current route specifications

openai/o3Observed Oct 4, 2026, 11:31 AM UTC

Context: 200,000
Maximum output: 100,000
Tokenizer: GPT
Input: image, text, file
Output: text
Moderation: Yes
Knowledge cutoff: 2024-06-30
Added to OpenRouter: 2025-04-16

Base URLhttps://openrouter.ai/api/v1

Model IDopenai/o3

Version IDopenai/o3-2025-04-16

Reasoning

Required: No
Enabled by default: Not reported
Default effort: —
Supported efforts: —

Supported parameters

include_reasoning
max_tokens
reasoning
response_format
seed
structured_outputs
tool_choice
tools

Frequently asked questions

Answers based on the model metadata and serving offers currently in the catalog.

How much does o3 cost?

Listed rates start at $2.00 per million input tokens and $8.00 per million output tokens. Prices vary by provider and configuration; see Pricing for details.

Which providers offer o3?

There are 17 cataloged offers across 17 providers. Compare model IDs, prices and limits in Providers.

What is the context window?

The cataloged model context is 200,000 tokens. Each serving endpoint may apply a different limit.

Does it support tools and structured output?

Tool calling: Yes. Structured output: Yes. Support can vary by endpoint.

Catalog history · 2 recorded revisions

Metadata observations since this model was first cataloged. These are not model release versions.

Sep 14, 2026 · 3e5d2ea5a65b
Sep 12, 2026 · 56ce49b16ee5