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Last scan 2026-10-30 Models tracked 303 Providers 41 Cheapest paid pplx-decider-flash-v1.2 $0.010/Mtok in Every price links to its source

GPT-5.3 Codex

by OpenAI

Deprecated coding mid tier
Email me when GPT-5.3 Codex gets cheaper
Deprecated — shuts down . Still purchasable until then, but the provider has announced end-of-life. Don't start new work on it. Migration target: GPT-6 Sol. Full deprecation status & replacements →
Availability: OpenAI announced on 2026-10-01 that gpt-5.3-codex is deprecated and will be removed from the API on 2027-04-01. OpenAI names gpt-6-sol as the replacement. Until then it is still sold at the price shown. Checked against OpenAI's deprecations page on 2026-10-18.

Today's price · per 1M tokens

Input

$1.75

per 1M tokens

Output

$14.00

per 1M tokens

Blended

$4.81

blended $/1M — 3:1 weighted input:output

Cached input

$0.175

10% of input — prompt caching

Source: official OpenAI pricing · read MODELPRICEWATCH.COM · 2026-10-30

Price receipt

We read OpenAI's own pricing page on and found GPT-5.3-Codex listed with a price on the same row — that read is where the number above comes from. We keep the page text we read; its content hash is 0486ff521e.

Overview

GPT-5.3 optimized for agentic coding and software engineering. 400K context.

Capabilities

struck through = not supported
Input 2/4
Text ✓ Image ✓ Audio Video
Output
Text ✓
Features 5/9
Prompt caching ✓ Reasoning ✓ Coding ✓ Fast inference Long context ✓ Open weights Multimodal ✓ Web search Realtime

Benchmark performance

accuracy % · higher is better
Avg benchmark score71%
Perf per $/Mtok14.8
SWE-Bench Verified vendor
85%
Terminal-Bench 2.1
77.3%
OSWorld-Verified
64.7%
Independent composite scores
  • AA Intelligence Index: 44.3 (Artificial Analysis composite across reasoning, knowledge and coding evals)
How it stacks up
  • Ranks #42 of 100 benchmarked models by average score
  • Ranks #78 of 194 comparably-measured models by percentile score, across 3 independent measurements
  • Ranks #169 of 194 comparably-tested models by normalized performance per dollar
  • Strongest at Terminal-Bench 2.1 — 77.3%, #22 of 46

50 tokens/sec output 0.003s latency to first token (TTFT)

Source: Vellum LLM Leaderboard · updated · See full rankings →

Specifications

Provider
OpenAI
Context window
400K tokens
Modality
text, image
Parameters
Proprietary
Open source
No — proprietary
Released
Status
Deprecated ends
Last updated
Tags
codingreasoning

Availability verified: — per OpenAI's own deprecation notice

Try on OpenAI Official pricing page