Ways to buy 9
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
 OpenAIflex, cheapest · cached $0.125 | $1.25 | $7.5 | $1.25 / $7.5-50% vs list | $0.125 | -50% vs list |
| OpenAI API The lab's own API · cached $0.25 | $2.5 | $15 | $2.5 / $15List price | $0.25 | List price |
 Azure AI FoundryDefault region · cached $0.25 | $2.5 | $15 | $2.5 / $15Same as list | $0.25 | Same as list |
 Databricks Mosaic AI Gateway + Foundation Model APIsFrom the platform pricing page | $2.5 | $15 | $2.5 / $15Same as list | n/a | Same as list |
 AWS Bedrockus-east-1 · cached $0.275 | $2.75 | $16.5 | $2.75 / $16.5+10% vs list | $0.275 | +10% vs list |
| Azure AI Foundry eu · cached $0.275 | $2.75 | $16.5 | $2.75 / $16.5+10% vs list | $0.275 | +10% vs list |
| Azure AI Foundry us · cached $0.275 | $2.75 | $16.5 | $2.75 / $16.5+10% vs list | $0.275 | +10% vs list |
 Snowflake Cortex AI (AI_COMPLETE)From the platform pricing page | $3 | $18 | $3 / $18+20% vs list | n/a | +20% vs list |
| OpenAI fast · cached $0.5 | $5 | $30 | $5 / $30+100% vs list | $0.5 | +100% vs list |
USD per 1M tokens; batch $1.25 in, $7.5 out on the lab's API. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $550.00 direct.
Helicone$550.00+0%
Kong AI Gateway$550.00+0%
LiteLLM$550.00+0%
Vercel AI Gateway$550.00+0%
Cloudflare AI Gateway$577.50+5%
Requesty$577.50+5%
Eden AI$580.25+5.5%
OpenRouter$580.25+5.5%
No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | ||||||
|---|---|---|---|---|---|---|---|
| GPT-6 Luna OpenAI · 1.05MCheapest: $0.1 on OpenAI (flex) | $0.1 | $0.5 | $0.1 / $0.5 | $0.2 | 1.05M | $0.1 on OpenAI (flex) | · |
| GPT-6 Luna Pro OpenAI · 1.05MCheapest: $0.1 on OpenAI (flex) | $0.1 | $0.5 | $0.1 / $0.5 | $0.2 | 1.05M | $0.1 on OpenAI (flex) | · |
| GPT-6 Sol OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · |
| GPT-6 Sol Pro OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · |
 Claude Opus 5Anthropic · 1M | $5 | $25 | $5 / $25 | $10 | 1M | Lab list price | · |
| Claude Opus 5.5 Anthropic · 1M | $4 | $20 | $4 / $20 | $8 | 1M | Lab list price | · |
| Claude Opus 4.6 Anthropic · 1M | $5 | $25 | $5 / $25 | $10 | 1M | Lab list price | · |
| Claude Opus 4.7 Anthropic · 1M | $5 | $25 | $5 / $25 | $10 | 1M | Lab list price | · |
About GPT-5.4
GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system.
Takes text, image, files in and returns text. First listed Mar 6, 2026. Up to 128K output tokens. Blended price $5.63 per 1M tokens at 3 input to 1 output. Overall score 2 on leadersboard.fru.dev (rank 45). Model id gpt-5-4.
Price history
List price since Mar 6, 2026, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.
Questions
How much does GPT-5.4 cost?
$2.5 per million input tokens and $15 per million output tokens, with cached input at $0.25, or $1.25 and $7.5 through the Batch API.
What is the context window of GPT-5.4?
1.05M tokens, with up to 128K tokens of output.
Where is GPT-5.4 cheapest?
Of 9 routes tracked, OpenAI is cheapest at $1.25 input and $7.5 output per million tokens.
Sources: OpenRouter's public model catalog and each provider's own pricing page, read every morning at 05:00 UTC; gateway fees re-read every Monday. List prices: your contract may differ. Logos via logo.dev; trademarks belong to their owners.