PE Collective
GPT-4o Pricing: What It Costs Per Token (April 2026)
GPT-4o launched in May 2024 at $5/$15 per million tokens and got a 50% price cut in October 2024. It now costs $2.50 input and $10 output per million tokens. OpenAI has since released GPT-4.1 as the recommended production replacement, but GPT-4o remains available and widely used. If you are running GPT-4o in production or evaluating whether to switch, this page covers everything: current per-token pricing, batch and caching discounts, comparison to GPT-4.1, and real-world cost estimates.
GPT-4o
- ✓ Multimodal: text, image, and audio input
- ✓ 128K context window
- ✓ Function calling and structured outputs
- ✓ Vision capabilities included at no extra charge
- ✓ 50% cached input discount ($1.25/1M)
GPT-4o Mini
- ✓ Cheapest GPT-4o variant
- ✓ 128K context window
- ✓ Good for classification, extraction, simple tasks
- ✓ Function calling supported
- ✓ 50% cached input discount ($0.075/1M)
GPT-4o Audio
- ✓ Native audio input and output
- ✓ Text tokens still at standard GPT-4o rates
- ✓ Audio tokens are significantly more expensive
- ✓ Best for voice-first applications
GPT-4o (Batch)
- ✓ 50% discount on standard pricing
- ✓ 24-hour turnaround SLA
- ✓ Same quality as synchronous API
- ✓ Best for bulk processing and evaluation
GPT-4o Pricing Table (April 2026)
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Hidden Costs & Gotchas
- ⚠ {'title': 'GPT-4.1 is cheaper for most use cases', 'detail': "GPT-4.1 costs $2.00/$8.00 per 1M tokens versus GPT-4o's $2.50/$10.00. That's 20% cheaper on input and output. Unless you need vision or audio specifically, GPT-4.1 is the better deal with stronger benchmark performance."}
- ⚠ {'title': 'Output tokens cost 4x input tokens', 'detail': 'GPT-4o charges $2.50 per 1M input tokens but $10.00 per 1M output tokens. Applications that generate long responses (summaries, articles, code) will see output dominate the bill. Budget based on your output-to-input ratio.'}
- ⚠ {'title': 'Vision queries use image tokens', 'detail': 'Sending images to GPT-4o converts them to tokens based on resolution. A 1024x1024 image uses roughly 765 tokens. High-res mode can use 2-3x more. Vision is included in the base price, but the token count adds up fast.'}
- ⚠ {'title': 'Audio tokens are 16x more expensive', 'detail': "GPT-4o audio input costs $40 per 1M tokens and output costs $80 per 1M tokens. That's 16x and 8x the text token prices respectively. For voice applications, calculate audio token costs separately."}
- ⚠ {'title': 'Prompt caching only helps on repeated prefixes', 'detail': 'The 50% cached input discount applies only when the beginning of your prompt matches a recent request exactly. System prompts and few-shot examples benefit most. Dynamic user inputs typically do not get cached.'}
- ⚠ {'title': 'Rate limits depend on your spending tier', 'detail': "Free tier users get 500 RPM. Tier 1 (\\ spent) gets 500 RPM and 30K TPM. Tier 5 (\\+ spent) gets 10K RPM and 30M TPM. Your effective throughput depends on your account's spending history."}
Which Plan Do You Need?
Prototyping or light usage
GPT-4o Mini at $0.15/$0.60 per 1M tokens. 97% cheaper than standard GPT-4o for simple tasks. Use this for classification, extraction, routing, and early-stage development.
Production text applications
Migrate to GPT-4.1 ($2.00/$8.00). It's 20% cheaper than GPT-4o, benchmarks higher on coding and instruction following, and has a 1M token context window. GPT-4o is no longer the recommended production model.
Vision and multimodal workflows
GPT-4o is still the go-to for image understanding. GPT-4.1 does not support vision input. If your application sends images, stay on GPT-4o or evaluate o4-mini for reasoning-heavy vision tasks.
Bulk processing and evaluation
Batch API at $1.25/$5.00 per 1M tokens. Half the cost of synchronous GPT-4o, with 24-hour turnaround. Ideal for data labeling, content generation, and test suite evaluation.
The Bottom Line
GPT-4o at $2.50/$10.00 per million tokens is no longer OpenAI's best value for text-only applications — GPT-4.1 is 20% cheaper and performs better on most benchmarks. But GPT-4o remains the right choice for vision and multimodal workflows where GPT-4.1 has no support. If you're starting fresh, default to GPT-4.1 for text and GPT-4o for images. If you're already running GPT-4o, the migration is straightforward since they share the same API format.
Related Resources
Frequently Asked Questions
How much does GPT-4o cost per token?
GPT-4o costs $2.50 per 1 million input tokens and $10.00 per 1 million output tokens. With prompt caching, input tokens drop to $1.25 per million. Batch API pricing is $1.25 input and $5.00 output per million tokens.
Is GPT-4o cheaper than GPT-4?
Yes. GPT-4o is significantly cheaper than the original GPT-4 ($30/$60 per 1M tokens) and GPT-4 Turbo ($10/$30 per 1M tokens). GPT-4o costs $2.50/$10.00 — roughly 75% cheaper than GPT-4 Turbo.
Should I use GPT-4o or GPT-4.1?
Use GPT-4.1 for text-only applications — it is 20% cheaper and benchmarks higher. Use GPT-4o only if you need vision (image input) or audio capabilities, which GPT-4.1 does not support.
What is GPT-4o Mini and when should I use it?
GPT-4o Mini costs $0.15/$0.60 per million tokens — 94% cheaper than GPT-4o. Use it for simple tasks like classification, extraction, routing, and early-stage development. Switch to GPT-4o or GPT-4.1 for complex reasoning and nuanced generation.
Does GPT-4o have a free tier?
The OpenAI API does not have a free tier for GPT-4o. New accounts get $5 in credits. ChatGPT Free includes limited GPT-4o access, but that is the consumer product, not the API.
How does GPT-4o batch pricing work?
Submit a JSONL file of requests to the Batch API endpoint. Processing completes within 24 hours. Pricing is 50% off standard rates: $1.25 input and $5.00 output per million tokens. Same quality as synchronous calls.
Is GPT-4o being deprecated?
OpenAI has not announced a deprecation date for GPT-4o. It is no longer the recommended production model (GPT-4.1 replaced it), but it remains available. OpenAI typically gives at least 6 months notice before deprecating models.
How much does it cost to analyze an image with GPT-4o?
Image analysis uses GPT-4o's standard text token pricing plus additional tokens for the image. A 1024x1024 image uses roughly 765 tokens ($0.002). High-res images use more tokens. There is no separate per-image charge.
What is the context window for GPT-4o?
GPT-4o supports 128K tokens of context (roughly 96K words). Both GPT-4o and GPT-4o Mini share this 128K limit. If you need more context, GPT-4.1 supports 1 million tokens.
How does GPT-4o pricing compare to Claude?
GPT-4o ($2.50/$10.00) is cheaper than Claude Sonnet 4.6 ($3.00/$15.00) on both input and output. Claude Haiku 4.5 ($0.80/$4.00) is cheaper than GPT-4o but more expensive than GPT-4o Mini ($0.15/$0.60).