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GPT-5 Nano

openai·openai/gpt-5-nano·BETA·Closed·gpt-nano series
Tiny GPT-5 lane for routing, extraction, classification, and bulk jobs

GPT-5 Nano by openai is offered by 30 providers on this page. Public prices are shown for 29 of them. Its official list price is $0.05 per 1M input tokens and $0.40 per 1M output tokens. The lowest paid channel is Ofox at $0.04 / $0.32 per 1M, about 1.5× below the list price. That channel is a third-party gateway, so confirm its availability and rate limits before depending on it.

Artificial Analysis rates it 13 on the Intelligence Index. Against its lowest blended price of $0.11 per 1M, that is roughly 118 index points per dollar, which is the value ratio the leaderboards rank on. Median output speed is 153 tokens per second, with 74.88s to the first token.

The context window is 400,000 tokens at the reference host, but hosts report different limits, from 128,000 to 400,000, so the usable window depends on the provider you pick. It supports reasoning, tool use, and structured output. Accepted input modalities are Text, Image, and PDF. Providers report the capability flags inconsistently, so verify a specific feature against the host you plan to use. Its training knowledge cuts off at 2024-05-30.

Specs & pricing

Input / output per 1M tokens
Official price·OpenAI
$0.05 / $0.40
Blended $0.14 · Cache read $0.005
Lowest paid·OfoxGateway
$0.04 / $0.32
Blended $0.11 · 1.5× spread
Context
400,000
Output limit
128,000
Knowledge cutoff
2024-05-30
Released / updated
2025-08-07 / 2025-08-07
Capabilities
✓ Reasoning✓ Tool use✓ Structured outputTemperature✓ Attachments
⚠ Providers report capability flags inconsistently
Modalities
TextImagePDF

Quality & performanceArtificial Analysis · Intelligence Index v4.3 · rep. tier High

Intelligence13
Value118
Coding—
Agentic—
Output speed153 tok/s
TTFT74.88 s
Value formulaIQ 13 ÷ min blended $0.110 = 118
Reasoning tier → intelligence / speed (higher tier = stronger but slower)
MinimalIQ 7.1 · 153 tok/s
MediumIQ 12.5 · 172 tok/s
HighIQ 13 · 153 tok/s

Quality is independently evaluated by Artificial Analysis. Speed/latency are model-level medians.

Available at 30 providers29 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
OfoxGateway$0.04$0.32$0.008—400,000128,000
PoeGateway$0.045$0.36$0.0045—400,000128,000
Jiekou.AIGateway$0.045$0.36——400,000128,000
HeliconeGateway$0.05$0.40$0.005—400,000128,000
NanoGPTGateway$0.05$0.40$0.005—400,000128,000
NEAR AI CloudGateway$0.05$0.40$0.005—400,000128,000
Databricks
databricks-gpt-5-nano
Cloud$0.05$0.40$0.005—400,000128,000
Kilo GatewayGateway$0.05$0.40$0.005—400,000128,000
AbacusGateway$0.05$0.40$0.005—400,000128,000
OpenRouterGateway$0.05$0.40$0.005—400,000128,000
OpenAIOfficialFirst-party$0.05$0.40$0.005—400,000128,000

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = minimaleffort = loweffort = mediumeffort = higheffort = xhigheffort = none

Interleaved thinking (reasoning between tool calls) is declared by 1 of 30 providers.

1 / 30 providers expose no reasoning control (reasoning_options: []).

Experimental modes2 items

ModeProviderInputOutputCache readCache write
flexVercel AI Gateway$0.025$0.20$0.0025—
flexOpenAI$0.025$0.20$0.0025—

Your usage cost

1Ofox$20.16
2Poe$22.14
3Helicone$24.60
4NanoGPT$24.60
5NEAR AI Cloud$24.60
6Databricks$24.60
22OpenAI · Official$24.60
Switch to Ofox to save $4.44/mo (18%). The gap is small, so staying on the official channel is fine.
Note: this is a gateway; verify availability and rate limits yourself.

Price historyone sample accumulated per data sync

Input listOutput listMin blended
$0.40$02026-08-052026-09-182026-08-05 · Input list $0.052026-08-06 · Input list $0.052026-08-07 · Input list $0.052026-08-08 · Input list $0.052026-08-09 · Input list $0.052026-08-10 · Input list $0.052026-08-11 · Input list $0.052026-08-12 · Input list $0.052026-08-13 · Input list $0.052026-09-18 · Input list $0.052026-08-05 · Output list $0.402026-08-06 · Output list $0.402026-08-07 · Output list $0.402026-08-08 · Output list $0.402026-08-09 · Output list $0.402026-08-10 · Output list $0.402026-08-11 · Output list $0.402026-08-12 · Output list $0.402026-08-13 · Output list $0.402026-09-18 · Output list $0.402026-08-05 · Min blended $0.122026-08-06 · Min blended $0.122026-08-07 · Min blended $0.122026-08-08 · Min blended $0.122026-08-09 · Min blended $0.122026-08-10 · Min blended $0.122026-08-11 · Min blended $0.122026-08-12 · Min blended $0.122026-08-13 · Min blended $0.122026-09-18 · Min blended $0.11

Artificial Analysis evaluations9 items

GPQA Diamond67.6%
Humanity's Last Exam9.5%
MMLU-Pro78.0%
LiveCodeBench78.9%
Terminal-Bench Hard12.1%
AIME 202583.7%
τ²-Bench Telecom36.5%
AA-LCR45.0%
IFBench67.5%

Individual evaluations run by Artificial Analysis, on the same reasoning tier as the intelligence score above. Each benchmark has its own task set and harness, so rows are not comparable with one another. The Intelligence Index above draws on a different, newer set of evaluations.

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Data partly from models.dev (MIT) · OpenAI official docs ↗