# GPT-4o (May 2024) ![Organization](https://img.shields.io/badge/Org-OpenAI-412991) ![Context](https://img.shields.io/badge/Context-128K%20tokens-1f6feb) ![Pricing](https://img.shields.io/badge/Price-%242.50%20%2F%20%2410%20per%201M-2da44e) ![License](https://img.shields.io/badge/License-Proprietary-d29922) ![Modality](https://img.shields.io/badge/Modality-Text%20%2B%20Vision%20%2B%20Audio-8957e5) ![Released](https://img.shields.io/badge/Released-May%202024-555) > **Quick answer:** GPT-4o (May 2024) is OpenAI's original "omni" model, released May 13, 2024. The first model to natively process and generate text, vision, and audio in a single end-to-end model, it replaced GPT-4 Turbo as the default API model and dropped prices 50% from its predecessor. At $2.50/$10 per million tokens (after OpenAI's mid-2024 price reduction), it remains a capable and cost-effective choice for production workloads not requiring frontier reasoning. ## At a Glance **Where GPT-4o (May 2024) leads** - First truly native omni model: text, vision, and audio processed in one network — no separate vision adapter - 2× price reduction vs GPT-4 Turbo at launch, later reduced again to $2.50/$10 - Faster response times than GPT-4 Turbo with comparable quality on most tasks - Strong vision understanding: charts, screenshots, diagrams, and document OCR **Where it lags** - 128K context window (GPT-5 and Claude Opus 4.6 offer 400K–1M) - SWE-bench Verified ~33% at launch — substantially below the 70%+ frontier of 2025–2026 - Superseded by GPT-4o (Nov 2024), GPT-4.5, and GPT-5 for new builds **Best for:** production workloads on pinned model versions, vision-heavy pipelines, and teams with existing GPT-4o integrations not yet ready to migrate. ## What GPT-4o (May 2024) Is GPT-4o — the "o" stands for "omni" — was OpenAI's breakthrough in unified multimodality. Previous OpenAI models handled vision through a separate adapter bolted onto the text model. GPT-4o was trained end-to-end across modalities, enabling lower latency, richer cross-modal reasoning, and native audio understanding. At launch it also introduced a real-time audio API that allowed voice conversations with human-like response latency (232ms average), a sharp contrast to the 2–3 second round-trip of previous voice integrations. The May 2024 checkpoint is identified by the API string `gpt-4o-2024-05-13` and is still accessible for teams that pinned this version. ## Specifications | Field | Value | |---|---| | Organization | OpenAI | | API identifier | `gpt-4o-2024-05-13` | | Context window | 128,000 tokens | | Max output | 4,096 tokens | | License | Proprietary | | Release date | May 13, 2024 | | Knowledge cutoff | October 2023 | | Modality | Multimodal (text, vision, and audio input; text output) | ## Pricing | | Input (per 1M tokens) | Output (per 1M tokens) | |---|---|---| | OpenAI | $2.50 | $10.00 | Price reduced from the original $5/$15 launch pricing. Source: [OpenAI pricing](https://openai.com/api/pricing). ## Public Benchmark Scores | Benchmark | Score | Source | Date | |---|---|---|---| | [SWE-bench Verified](/benchmarks/swe-bench-verified) | 33.2% | [OpenAI — Hello GPT-4o](https://openai.com/index/hello-gpt-4o) | 2024-05 | | MMLU | 88.7% | [OpenAI — Hello GPT-4o](https://openai.com/index/hello-gpt-4o) | 2024-05 | | GPQA | 53.6% | [OpenAI — Hello GPT-4o](https://openai.com/index/hello-gpt-4o) | 2024-05 | | HumanEval | 90.2% | [OpenAI — Hello GPT-4o](https://openai.com/index/hello-gpt-4o) | 2024-05 | *Scores reported by OpenAI. Not Benchgen measurements.* ## GPT-4o vs Alternatives | Model | Context | SWE-bench Verified | Price (in/out per 1M) | |---|---|---|---| | **GPT-4o (May 2024)** | 128K | 33.2% | $2.50 / $10 | | [GPT-4o (Nov 2024)](/models/openai/gpt-4o) | 128K | 38.8% | $2.50 / $10 | | [GPT-5](/models/openai/gpt-5) | 400K | 74.9% | $1.25 / $10 | | [Claude 3.5 Sonnet](/models/anthropic/claude-3-5-sonnet) | 200K | 49.0% | $3 / $15 | *(Rival scores from respective announcements; not Benchgen measurements.)* ## Related Models & Benchmarks - Compare: [GPT-4o (Nov 2024)](/models/openai/gpt-4o) · [GPT-5](/models/openai/gpt-5) · [Claude 3.5 Sonnet](/models/anthropic/claude-3-5-sonnet) - Benchmarks: [SWE-bench Verified](/benchmarks/swe-bench-verified) · [MMLU-Pro](/benchmarks/mmlu-pro) ## Frequently Asked Questions

What is GPT-4o?

GPT-4o ("omni") is OpenAI's first natively multimodal model, processing text, vision, and audio in a single network. The May 2024 checkpoint was the original release, available via API as gpt-4o-2024-05-13.

How much does GPT-4o cost?

$2.50 per million input tokens and $10 per million output tokens (after mid-2024 price reduction from the original $5/$15 launch pricing).

--- *Specs sourced from [OpenAI's GPT-4o launch](https://openai.com/index/hello-gpt-4o). Last updated 2026-06-19.*

GPT-4o (May 2024) — Files