DeepSeek V3.2 vs GPT OSS 20B (Fireworks): API Cost Comparison
Compare the API pricing, context windows, features, and real-world cost projections for DeepSeek V3.2 (DeepSeek) and GPT OSS 20B (Fireworks) (Fireworks AI). Use the interactive calculator below to compute your exact monthly cost based on your token usage and request volume.
Prices verified Mar 10, 2026
Interactive Cost Calculator
Fills in typical token counts for a workload type
Tokens in each prompt sent to the model
Tokens generated in each response
Total API calls per month
Showing costs for 2 models. Cheapest: GPT OSS 20B (Fireworks) at $2.20/month.
| Alert | |||||||
|---|---|---|---|---|---|---|---|
BestGPT OSS 20B (Fireworks) | Fireworks AI | $2.20 | $0.000220 | $0.70 | $1.50 | 55.1% | Alerts coming soon |
DeepSeek V3.2 | DeepSeek | $4.90 | $0.000490 | $2.80 | $2.10 | — | Alerts coming soon |
Monthly Cost Comparison
Price Comparison at a Glance
All prices are in USD per 1 million tokens ($/M tokens). Lower is cheaper.
| Pricing Type | DeepSeek V3.2 | GPT OSS 20B (Fireworks) | Cheaper |
|---|---|---|---|
| Input (standard) | $0.28/M | $0.07/M | GPT OSS 20B (Fireworks) |
| Output | $0.42/M | $0.30/M | GPT OSS 20B (Fireworks) |
| Cached input | $0.03/M | $0.04/M | DeepSeek V3.2 |
| Batch input | N/A | $0.04/M | — |
| Batch output | N/A | $0.15/M | — |
Prices last verified: 2026-03-06 – 2026-03-10
Cost Breakdown by Usage Volume
Estimated monthly costs at different request volumes, assuming 1,000 input tokens and 500 output tokens per request. Adjust in the calculator above for your specific use case.
| Volume | DeepSeek V3.2Monthly | GPT OSS 20B (Fireworks)Monthly | DeepSeek V3.2Per request | GPT OSS 20B (Fireworks)Per request |
|---|---|---|---|---|
| 1K requests/mo | $0.49 | $0.22 | $0.000490 | $0.000220 |
| 10K requests/mo | $4.90 | $2.20 | $0.000490 | $0.000220 |
| 100K requests/mo | $49.00 | $22.00 | $0.000490 | $0.000220 |
| 1M requests/mo | $490.00 | $220.00 | $0.000490 | $0.000220 |
Green values indicate the lower-cost option at each volume tier. Cost per request is calculated at 1,000 input + 500 output tokens using standard (non-batch, non-cached) pricing.
Price History
Input price per 1M tokensWhen to Choose DeepSeek V3.2
by DeepSeek
- Code generation
- Content & copywriting
- General chatbot
Input / 1M tokens
$0.28/M
Output / 1M tokens
$0.42/M
Context window
128,000
Tier
premium
When to Choose GPT OSS 20B (Fireworks)
by Fireworks AI
- Customer support
- Text classification
- General chatbot
Input / 1M tokens
$0.07/M
Output / 1M tokens
$0.30/M
Context window
131,072
Tier
budget
Key Differences Beyond Price
Cost is only one factor in choosing an AI model. Context window size, rate limits, supported features, and latency all affect whether a model fits your use case.
| Capability | DeepSeek V3.2 | GPT OSS 20B (Fireworks) |
|---|---|---|
| Context window | 128,000 tokens | 131,072 tokens |
| Max output tokens | 8,192 tokens | 16,384 tokens |
| Performance tier | Premium | Budget |
| Vision / image input | No | No |
| Function calling | Yes | Yes |
| JSON mode | Yes | Yes |
| Prompt caching | Yes | Yes |
| Batch API (50% discount) | No | Yes |
| Extended reasoning | No | No |
| Fine-tuning | No | No |
DeepSeek V3.2 notes
V3.2 unified pricing. Off-peak pricing (16:30-00:30 UTC) offers further discounts.
GPT OSS 20B (Fireworks) notes
Fireworks serverless pricing. Cached input 50% discount. Batch at 50% of serverless.
Frequently Asked Questions
Is DeepSeek V3.2 cheaper than GPT OSS 20B (Fireworks)?
At standard usage (1,000 input tokens, 500 output tokens, 100,000 requests/month), GPT OSS 20B (Fireworks) costs $22.00/month versus $49.00/month for DeepSeek V3.2 — a 55% saving. Your actual savings will vary based on your token profile; output-heavy workloads amplify differences in output pricing.
Which model has a larger context window, DeepSeek V3.2 or GPT OSS 20B (Fireworks)?
GPT OSS 20B (Fireworks) has a larger context window at 131,072 tokens, compared to 128,000 tokens for DeepSeek V3.2. A larger context window is important for processing long documents, multi-turn conversations, or large codebases without truncation.
Do DeepSeek V3.2 and GPT OSS 20B (Fireworks) support the Batch API?
GPT OSS 20B (Fireworks) supports the Batch API (50% discount for async processing), while DeepSeek V3.2 does not. If your workload tolerates up to 24-hour latency, routing to GPT OSS 20B (Fireworks) with batch pricing could significantly cut costs versus DeepSeek V3.2's standard rate.
Which model offers better prompt caching?
Both DeepSeek V3.2 and GPT OSS 20B (Fireworks) support prompt caching. DeepSeek V3.2 caches repeated input at $0.03/M (vs $0.28/M standard), while GPT OSS 20B (Fireworks) caches at $0.04/M (vs $0.07/M standard). For workloads with large, repeated system prompts or document context, caching can reduce effective input costs by 60–90%.
What are the best use cases for DeepSeek V3.2 vs GPT OSS 20B (Fireworks)?
Both models are well-suited for General chatbot. DeepSeek V3.2 is particularly strong for Code generation, Content & copywriting. GPT OSS 20B (Fireworks) is favored for Customer support, Text classification. At the same quality level, the lower-cost model is usually preferable; use this page's calculator to compare total monthly spend at your volume.
What is the cost per request for DeepSeek V3.2 vs GPT OSS 20B (Fireworks)?
At 1,000 input tokens and 500 output tokens per request — a typical conversational workload — DeepSeek V3.2 costs $0.000490 per request and GPT OSS 20B (Fireworks) costs $0.000220 per request. At 100,000 requests/month, that translates to $49.00 and $22.00 respectively. Use the interactive calculator to adjust these parameters for your actual workload.
DeepSeek V3.2 vs GPT OSS 20B (Fireworks): Summary
When comparing DeepSeek V3.2 and GPT OSS 20B (Fireworks) for API cost, the right choice depends on your workload's token profile, required features, and tolerance for latency. GPT OSS 20B (Fireworks) offers lower total cost at standard usage volumes (1,000 input + 500 output tokens per request at 100,000 requests/month) at $22.00/month, compared to $49.00/month for DeepSeek V3.2.
Both models are priced in USD per million tokens, the standard unit across all major AI API providers. DeepSeek V3.2 charges $0.28/M for input tokens and $0.42/M for output tokens. GPT OSS 20B (Fireworks) charges $0.07/M input and $0.30/M output. If your workload is output-heavy (more tokens generated than consumed as input), the model with the lower output price compounds cost savings significantly at scale.
Prompt caching is supported by both models. For workloads with large, repeated system prompts or document context — such as RAG pipelines or multi-turn conversations with a fixed knowledge base — prompt caching can reduce effective input costs by 60–90%, which may change the cost ranking between these two models at your specific usage pattern.
Context window capacity differs between the two: GPT OSS 20B (Fireworks) supports up to 131,072 tokens in a single request, versus 128,000 tokens for DeepSeek V3.2. A larger context window is essential for document summarization, large codebase analysis, and multi-document retrieval-augmented generation (RAG) applications.
Use the interactive calculator at the top of this page to enter your actual token usage and monthly request volume for a precise cost comparison tailored to your workload. Adjust for batch API discounts and prompt caching to find the most cost-effective option for your specific deployment.
Related Comparisons
Explore other model comparisons from the same providers or performance tiers.
Related Provider Pages
View complete pricing tables and model lineups for the providers behind these models.
Relevant Use Cases
See cost recommendations for workloads where DeepSeek V3.2 or GPT OSS 20B (Fireworks) is recommended.