GPT-5.4

openai/gpt-5.4-20260305

OpenAI's GPT-5.4, released on 2026-03-05, accepts text, image, and file inputs and generates text output. It provides a context length of 1,050,000 tokens, supports tool usage and reasoning, and does not have open weights. Pricing is $2.5 per million input tokens and $15 per million output tokens.

  • tool use
  • structured outputs
  • reasoning

At a glance

provideropenai
releasedMar 5, 2026
context1.1M
input / M$2.50

Specifications

What the API gives you

Context window
1.1M tokens
Max output
128K tokens
Input price
$2.50 / 1M tokens
Output price
$15 / 1M tokens
Cache read
$0.25 / 1M tokens
Modalities
text, image, file → text
Knowledge cutoff
—
Released
Mar 5, 2026

Recommendation coverage

Where this model appears

  1. #1Best LLM for Summarization
  2. #1Best LLM for Fast Summaries
  3. #4Best LLM for Math & Reasoning
  4. #4Best LLM for Document Parsing
  5. #5Best LLM for Marketing Copy
  6. #7Best LLM for Tool & Function Calling
  7. #8Best LLM for AI Agents
  8. #8Best LLM for a General Assistant

Measured evidence

Public benchmark record

Aider Polyglot
44.9%2026-07-17
Aider Polyglot
44.9%2026-07-21
LMArena Agent
5.92026-07-13
LMArena Agent
5.92026-07-20
LMArena Text
1470 Elo2026-07-16
LMArena Text
1499 Elo2026-07-20
LMArena Vision
1299 Elo2026-07-12
LMArena WebDev
1386 Elo2026-07-16
LMArena WebDev
1385 Elo2026-07-20

LMArena data licensed CC-BY-4.0. Aider (Apache-2.0) and SWE-bench (MIT) are open.

Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.