openai/gpt-5.3-chat-latest

openai/gpt-5.3-chat-latest
VisionToolsJSON
by openai
Endpoints:/v1/chat/completions
Max output16.4K
Inputtext + image
p50 TTFT1.75 s
INPUT$1.75/ 1M tokens
OUTPUT$14.00/ 1M tokens
p50 TTFT1.75 s7d
p95 TTFT5.00 s7d
TRAFFIC507.5Ktokens / 7d
Get the openai/gpt-5.3-chat-latest API →▶ Try in playground</> Use via API

Code samples

Call from any SDK

OpenAI-compatible — keep the SDK you already use

  • OpenAI SDKhttps://api.orcarouter.ai/v1
from openai import OpenAI

client = OpenAI(
    base_url="https://api.orcarouter.ai/v1",
    api_key="$ORCAROUTER_API_KEY",
)

response = client.chat.completions.create(
    model="openai/gpt-5.3-chat-latest",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

Supported parameters

  • frequency_penalty
  • logit_bias
  • logprobs
  • max_tokens
  • parallel_tool_calls
  • presence_penalty
  • prediction
  • response_format
  • seed
  • service_tier
  • stop
  • stream
  • structured_outputs
  • temperature
  • tool_choice
  • tools
  • top_logprobs
  • top_p

Pricing

Input / 1M tokens$1.75
Output / 1M tokens$14.00
Cache read / 1M$0.175
CurrencyUSD

Cost calculator

Tokens / month10MM
Input share70%%
Estimated / month $54.25 · With prompt caching $48.74

Estimate based on list price

Token & cost estimator

Input tokens: 20Cost per request: $0.007035

Estimate only — actual token counts depend on the provider's tokenizer.

Performance

last 7 days
p50 TTFT
1.75 s
Output speed
109 tok/s
p95 TTFT
5.00 s
Error rate
4.2%

Public benchmarks

pending
How Design Arena works
Source: Design Arena

How it compares

openai/gpt-5.3-chat-latestGPT-5.2 ProGPT-5.4 ProGPT-5.5
Input $/M$1.75$21.00$60.00$5.00
Output $/M$14.00$168.00$270.00$30.00
Context—400K1.1M—
Quality9/1010/1010/1010/10
Compare side-by-sideCompare side-by-sideCompare side-by-sideCompare side-by-side

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FAQ

How much does openai/gpt-5.3-chat-latest cost on OrcaRouter?
openai/gpt-5.3-chat-latest is priced at $1.75 per 1M input tokens and $14.00 per 1M output tokens via OrcaRouter. Pricing is pulled live from the routing layer.
What is openai/gpt-5.3-chat-latest's context window?
openai/gpt-5.3-chat-latest supports a context window of — tokens. Use long-context features (RAG, summarisation) up to that limit.
How do I call openai/gpt-5.3-chat-latest via the OpenAI SDK?
Set OpenAI base_url to https://api.orcarouter.ai/v1, supply your OrcaRouter API key, and pass model="openai/gpt-5.3-chat-latest" in the chat.completions.create call.
Does OrcaRouter rate-limit openai/gpt-5.3-chat-latest?
Per-model rate limits follow your OrcaRouter plan. Free tiers ship with conservative caps; paid tiers lift them. Check /pricing for current quotas.

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Model card as data

GET /api/public/models/openai/gpt-5.3-chat-latestOpen
Machine-readable:/llms.txt/llms-full.txt