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GPT-5.1 (Azure) vs Qwen3 VL 30B (Fireworks): API Cost Comparison

Compare the API pricing, context windows, features, and real-world cost projections for GPT-5.1 (Azure) (Azure OpenAI) and Qwen3 VL 30B (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 11, 2026

Interactive Cost Calculator

Azure OpenAIGPT-5.1 (Azure)Fireworks AIQwen3 VL 30B (Fireworks)

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: Qwen3 VL 30B (Fireworks) at $4.50/month.

Cheapest: Qwen3 VL 30B (Fireworks) at $4.50/mo — save 92.8% vs GPT-5.1 (Azure)
Alert
BestQwen3 VL 30B (Fireworks)
Fireworks AI$4.50$0.000450$1.50$3.0092.8%Alerts coming soon
GPT-5.1 (Azure)
Azure OpenAI$62.50$0.006250$12.50$50.00Alerts 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 TypeGPT-5.1 (Azure)Qwen3 VL 30B (Fireworks)Cheaper
Input (standard)$1.25/M$0.15/MQwen3 VL 30B (Fireworks)
Output$10.00/M$0.60/MQwen3 VL 30B (Fireworks)
Cached inputN/A$0.08/M
Batch inputN/A$0.08/M
Batch outputN/A$0.30/M

Prices last verified: 2026-03-10 – 2026-03-11

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.

VolumeGPT-5.1 (Azure)MonthlyQwen3 VL 30B (Fireworks)MonthlyGPT-5.1 (Azure)Per requestQwen3 VL 30B (Fireworks)Per request
1K requests/mo$6.25$0.45$0.006250$0.000450
10K requests/mo$62.50$4.50$0.006250$0.000450
100K requests/mo$625.00$45.00$0.006250$0.000450
1M requests/mo$6,250.00$450.00$0.006250$0.000450

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 tokens

When to Choose GPT-5.1 (Azure)

by Azure OpenAI

  • Summarization
  • Content Creation
  • Rag Retrieval

Input / 1M tokens

$1.25/M

Output / 1M tokens

$10.00/M

Context window

128,000

Tier

mid

When to Choose Qwen3 VL 30B (Fireworks)

by Fireworks AI

  • Document summarization
  • General chatbot

Input / 1M tokens

$0.15/M

Output / 1M tokens

$0.60/M

Context window

262,144

Tier

mid

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.

CapabilityGPT-5.1 (Azure)Qwen3 VL 30B (Fireworks)
Context window128,000 tokens262,144 tokens
Max output tokens32,768 tokens8,192 tokens
Performance tierMidMid
Vision / image inputYesYes
Function callingYesYes
JSON modeYesYes
Prompt cachingNoYes
Batch API (50% discount)NoYes
Extended reasoningNoNo
Fine-tuningNoNo

GPT-5.1 (Azure) notes

GPT-5.1 via Azure OpenAI Service. Mid-tier GPT-5 variant for enterprise teams needing strong performance with Azure's managed infrastructure and SLA guarantees.

Qwen3 VL 30B (Fireworks) notes

Fireworks serverless pricing. Vision/multimodal capable. Cached input 50% discount.

Frequently Asked Questions

Is GPT-5.1 (Azure) cheaper than Qwen3 VL 30B (Fireworks)?

At standard usage (1,000 input tokens, 500 output tokens, 100,000 requests/month), Qwen3 VL 30B (Fireworks) costs $45.00/month versus $625.00/month for GPT-5.1 (Azure) — a 93% 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, GPT-5.1 (Azure) or Qwen3 VL 30B (Fireworks)?

Qwen3 VL 30B (Fireworks) has a larger context window at 262,144 tokens, compared to 128,000 tokens for GPT-5.1 (Azure). A larger context window is important for processing long documents, multi-turn conversations, or large codebases without truncation.

Do GPT-5.1 (Azure) and Qwen3 VL 30B (Fireworks) support the Batch API?

Qwen3 VL 30B (Fireworks) supports the Batch API (50% discount for async processing), while GPT-5.1 (Azure) does not. If your workload tolerates up to 24-hour latency, routing to Qwen3 VL 30B (Fireworks) with batch pricing could significantly cut costs versus GPT-5.1 (Azure)'s standard rate.

Which model offers better prompt caching?

Qwen3 VL 30B (Fireworks) supports prompt caching at $0.08/M for cached input, while GPT-5.1 (Azure) does not offer prompt caching. For RAG applications or chatbots with large, repeated context, Qwen3 VL 30B (Fireworks)'s caching capability can substantially reduce effective costs.

What are the best use cases for GPT-5.1 (Azure) vs Qwen3 VL 30B (Fireworks)?

GPT-5.1 (Azure) is best suited for Summarization, Content Creation, Rag Retrieval, while Qwen3 VL 30B (Fireworks) is optimized for Document summarization, General chatbot. Choose based on which use case matches your primary workload — and validate with the cost calculator above to confirm the total monthly spend fits your budget.

What is the cost per request for GPT-5.1 (Azure) vs Qwen3 VL 30B (Fireworks)?

At 1,000 input tokens and 500 output tokens per request — a typical conversational workload — GPT-5.1 (Azure) costs $0.006250 per request and Qwen3 VL 30B (Fireworks) costs $0.000450 per request. At 100,000 requests/month, that translates to $625.00 and $45.00 respectively. Use the interactive calculator to adjust these parameters for your actual workload.

GPT-5.1 (Azure) vs Qwen3 VL 30B (Fireworks): Summary

When comparing GPT-5.1 (Azure) and Qwen3 VL 30B (Fireworks) for API cost, the right choice depends on your workload's token profile, required features, and tolerance for latency. Qwen3 VL 30B (Fireworks) offers lower total cost at standard usage volumes (1,000 input + 500 output tokens per request at 100,000 requests/month) at $45.00/month, compared to $625.00/month for GPT-5.1 (Azure).

Both models are priced in USD per million tokens, the standard unit across all major AI API providers. GPT-5.1 (Azure) charges $1.25/M for input tokens and $10.00/M for output tokens. Qwen3 VL 30B (Fireworks) charges $0.15/M input and $0.60/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 Qwen3 VL 30B (Fireworks) but not GPT-5.1 (Azure). 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: Qwen3 VL 30B (Fireworks) supports up to 262,144 tokens in a single request, versus 128,000 tokens for GPT-5.1 (Azure). 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.

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 GPT-5.1 (Azure) or Qwen3 VL 30B (Fireworks) is recommended.