OpenAI vs DeepSeek Pricing
Per-million-token pricing for OpenAI and DeepSeek, with side-by-side flagship models, cheapest tiers, and context windows. Pricing data syncs weekly from a continuously-updated model catalog — last updated June 22, 2026.
As of June 22, 2026, DeepSeek offers the lowest output-token price at $0.10/1M (DeepSeek R1 0528 Qwen3 8B — $0.10/1M output).
Who wins on what
Cheapest input tokens
$0.02/1MDeepSeek
DeepSeek R1 0528 Qwen3 8B — $0.02/1M input
Cheapest output tokens
$0.10/1MDeepSeek
DeepSeek R1 0528 Qwen3 8B — $0.10/1M output
Longest context window
2.0MOpenAI
gpt-5.4 (>272K context length) — 2.0M input tokens
Lowest average output cost
$0.79/1MDeepSeek
Provider-wide average across 21 models
Largest model catalog
138 modelsOpenAI
More options to match cost vs capability
Cheapest cached input
$0.00/1MDeepSeek
DeepSeek Chat — $0.00/1M cached read
Most reasoning models
9 modelsOpenAI
Models with dedicated reasoning / thinking support
Most vision models
10 modelsOpenAI
Models that accept image input
Open-weights available
YesDeepSeek
Offers open-weight models you can self-host
Side-by-side
OpenAI
Cheapest input
$0.030
gpt-oss-20b
Cheapest output
$0.140
gpt-oss-20b
Longest context
2.0M
gpt-5.4 (>272K context length)
Avg output / 1M
$28.00
Across catalog
Cheapest cached input
$0.125
GPT-5.1 Codex Max
| Model | In/1M | Out/1M | Ctx |
|---|---|---|---|
| GPT-5.5 Pro VisionReasoningTools | $30.00 | $180.00 | 1.1M |
| GPT-5.5 VisionReasoningToolsCache | $5.00 | $30.00 | 1.1M |
| gpt-5.4-mini | $0.750 | $4.50 | 272K |
| gpt-5.4-nano | $0.200 | $1.25 | 272K |
| GPT-5.4 Pro VisionReasoningTools | $30.00 | $180.00 | 1.1M |
| gpt-oss-20b | $0.030 | $0.140 | 131K |
DeepSeek
Cheapest input
$0.020
DeepSeek R1 0528 Qwen3 8B
Cheapest output
$0.100
DeepSeek R1 0528 Qwen3 8B
Longest context
1.0M
DeepSeek Chat
Avg output / 1M
$0.790
Across catalog
Cheapest cached input
$0.0028
DeepSeek Chat
| Model | In/1M | Out/1M | Ctx |
|---|---|---|---|
| DeepSeek V4 Pro ReasoningToolsCache | $0.435 | $0.870 | 1.0M |
| DeepSeek V4 Flash ReasoningToolsCache | $0.140 | $0.280 | 1.0M |
| DeepSeek Chat ToolsCache | $0.140 | $0.280 | 1.0M |
| DeepSeek Reasoner ReasoningToolsCache | $0.140 | $0.280 | 1.0M |
| DeepSeek R1 | $0.550 | $2.19 | 66K |
| DeepSeek R1 0528 Qwen3 8B | $0.020 | $0.100 | 33K |
All prices in USD per 1 million tokens. Showing top 6 models per provider, sorted by output cost.
Related comparisons
Run the numbers for your workload
Calcaas multiplies per-token costs by your real usage patterns — inputs, outputs, retries, and conversation history — across both providers in one model.