OpenAI · 2023-05-28
GPT-4 pricing
OpenAI's flagship model, GPT-4 is a large-scale multimodal language model capable of solving difficult problems with greater accuracy than previous models due to its broader general knowledge and advanced reasoning...
Prices from OpenRouter’s models API, updated October 29, 2026
What GPT-4 costs a month
| Workload | Standard |
|---|---|
| Support chatbot: 1,000 chats a day, 1,500 tokens in, 400 out | $2,070 |
| Daily summaries: 10,000 a day, 3,000 tokens in, 300 out | $32,400 |
| Coding agent: 400 calls a day, 60,000 tokens in (80% cached), 2,000 out | $23,040 |
30 days. Cached input billed at the cache-read price. Use your own numbers.
Cheaper models with a similar context window
| Model | Provider | Input /1M | Output /1M | Cache read /1M | Context | Chatbot, per month* |
|---|---|---|---|---|---|---|
| Solar Mini 4 | upstage | $0.05 | $0.20 | $0.005 | 524K | $4.65 |
| Ternary Bonsai 2 9B | prism-ml | $0.08 | $0.13 | $0.04 | 262K | $5.16 |
| Ling 3.1 Flash | inclusionai | $0.075 | $0.225 | $0.015 | 1M | $6.07 |
| Mercury 3 | inception | $0.10 | $0.35 | $0.01 | 1M | $8.70 |
| Claude Haiku 5.5 | Anthropic | $0.10 | $0.50 | $0.01 | 1M | $10.50 |
* Support chatbot: 1,000 chats a day, 1,500 tokens in, 400 out, 30 days, no caching. Prices in US dollars per 1M tokens.
Cheaper isn’t automatically as good. Glow’s GlowBench scores models on your kind of task before suggesting a swap.
Other GPT models
| Model | Input /1M | Output /1M | Cache read /1M | Context | Chatbot, per month* |
|---|---|---|---|---|---|
| GPT-6.1 Terra | $1 | $5 | $0.05 | 1.05M | $105 |
| GPT-6.1 Terra Pro | $1 | $5 | $0.05 | 1.05M | $105 |
| GPT-6.1 Sol | $2 | $10 | $0.10 | 1.05M | $210 |
| GPT-6.1 Sol Pro | $2 | $10 | $0.10 | 1.05M | $210 |
| GPT-6 Luna | $0.10 | $0.50 | $0.01 | 1.05M | $10.50 |
| GPT-6 Luna Pro | $0.10 | $0.50 | $0.01 | 1.05M | $10.50 |
* Support chatbot: 1,000 chats a day, 1,500 tokens in, 400 out, 30 days, no caching. Prices in US dollars per 1M tokens.
Related
GPT-4: questions
How much does GPT-4 cost?
$30 per 1M input tokens and $60 per 1M output tokens. A 1,000-token prompt with a 500-token answer costs about $0.060.
What is GPT-4’s context window?
8,191 tokens, with up to 4,096 output tokens per response.
Is there a cheaper alternative to GPT-4?
Solar Mini 4 costs $0.05 in and $0.20 out per 1M tokens with a similar context window. Whether it matches GPT-4’s quality depends on the task: test it on your own prompts (Glow’s GlowBench does this per task).
Know what each model really costs you.
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