Claude Opus 4.8 (Fast) vs MiniMax M2.5 (OpenRouter): API Cost Comparison
Compare the API pricing, context windows, features, and real-world cost projections for Claude Opus 4.8 (Fast) (Anthropic) and MiniMax M2.5 (OpenRouter) (OpenRouter). Use the interactive calculator below to compute your exact monthly cost based on your token usage and request volume.
Prices verified Jun 26, 2026
Interactive Cost Calculator
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Showing costs for 2 models. Cheapest: MiniMax M2.5 (OpenRouter) at $7.45/month.
| Alert | |||||||
|---|---|---|---|---|---|---|---|
BestMiniMax M2.5 (OpenRouter) | OpenRouter | $7.45 | $0.000745 | $2.70 | $4.75 | 97.9% | Alerts coming soon |
Claude Opus 4.8 (Fast) | Anthropic | $350.00 | $0.035000 | $100.00 | $250.00 | — | Alerts coming soon |
Monthly Cost Comparison
Price Comparison at a Glance
All prices are in USD per 1 million tokens ($/M tokens). Lower is cheaper.
| Pricing Type | Claude Opus 4.8 (Fast) | MiniMax M2.5 (OpenRouter) | Cheaper |
|---|---|---|---|
| Input (standard) | $10.00/M | $0.27/M | MiniMax M2.5 (OpenRouter) |
| Output | $50.00/M | $0.95/M | MiniMax M2.5 (OpenRouter) |
Prices last verified: 2026-03-10 – 2026-06-26
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 | Claude Opus 4.8 (Fast)Monthly | MiniMax M2.5 (OpenRouter)Monthly | Claude Opus 4.8 (Fast)Per request | MiniMax M2.5 (OpenRouter)Per request |
|---|---|---|---|---|
| 1K requests/mo | $35.00 | $0.74 | $0.035000 | $0.000745 |
| 10K requests/mo | $350.00 | $7.45 | $0.035000 | $0.000745 |
| 100K requests/mo | $3,500.00 | $74.50 | $0.035000 | $0.000745 |
| 1M requests/mo | $35,000.00 | $745.00 | $0.035000 | $0.000745 |
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 Claude Opus 4.8 (Fast)
by Anthropic
- General chatbot
Input / 1M tokens
$10.00/M
Output / 1M tokens
$50.00/M
Context window
1,000,000
Tier
premium
When to Choose MiniMax M2.5 (OpenRouter)
by OpenRouter
- Document summarization
- General chatbot
- Customer support
Input / 1M tokens
$0.27/M
Output / 1M tokens
$0.95/M
Context window
196,608
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.
| Capability | Claude Opus 4.8 (Fast) | MiniMax M2.5 (OpenRouter) |
|---|---|---|
| Context window | 1,000,000 tokens | 196,608 tokens |
| Max output tokens | 128,000 tokens | 65,536 tokens |
| Performance tier | Premium | Mid |
| Vision / image input | Yes | No |
| Function calling | Yes | Yes |
| JSON mode | Yes | Yes |
| Prompt caching | No | No |
| Batch API (50% discount) | No | No |
| Extended reasoning | Yes | No |
| Fine-tuning | No | No |
MiniMax M2.5 (OpenRouter) notes
OpenRouter offers 200+ models — showing top 15 unique models not available from other listed providers. Prices include OpenRouter markup.
Frequently Asked Questions
Is Claude Opus 4.8 (Fast) cheaper than MiniMax M2.5 (OpenRouter)?
At standard usage (1,000 input tokens, 500 output tokens, 100,000 requests/month), MiniMax M2.5 (OpenRouter) costs $74.50/month versus $3,500.00/month for Claude Opus 4.8 (Fast) — a 98% 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, Claude Opus 4.8 (Fast) or MiniMax M2.5 (OpenRouter)?
Claude Opus 4.8 (Fast) has a larger context window at 1,000,000 tokens, compared to 196,608 tokens for MiniMax M2.5 (OpenRouter). A larger context window is important for processing long documents, multi-turn conversations, or large codebases without truncation.
Do Claude Opus 4.8 (Fast) and MiniMax M2.5 (OpenRouter) support the Batch API?
Neither Claude Opus 4.8 (Fast) nor MiniMax M2.5 (OpenRouter) currently supports a batch API with discounted pricing. For batch-eligible alternatives, consider models from OpenAI, Anthropic, or Google that include batch API support.
Which model offers better prompt caching?
Neither Claude Opus 4.8 (Fast) nor MiniMax M2.5 (OpenRouter) currently supports prompt caching. For prompt-caching capable alternatives, consider Claude models from Anthropic or GPT-4o from OpenAI.
What are the best use cases for Claude Opus 4.8 (Fast) vs MiniMax M2.5 (OpenRouter)?
Both models are well-suited for General chatbot. Claude Opus 4.8 (Fast) is particularly strong for overlapping tasks. MiniMax M2.5 (OpenRouter) is favored for Document summarization, Customer support. 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 Claude Opus 4.8 (Fast) vs MiniMax M2.5 (OpenRouter)?
At 1,000 input tokens and 500 output tokens per request — a typical conversational workload — Claude Opus 4.8 (Fast) costs $0.035000 per request and MiniMax M2.5 (OpenRouter) costs $0.000745 per request. At 100,000 requests/month, that translates to $3,500.00 and $74.50 respectively. Use the interactive calculator to adjust these parameters for your actual workload.
Claude Opus 4.8 (Fast) vs MiniMax M2.5 (OpenRouter): Summary
When comparing Claude Opus 4.8 (Fast) and MiniMax M2.5 (OpenRouter) for API cost, the right choice depends on your workload's token profile, required features, and tolerance for latency. MiniMax M2.5 (OpenRouter) offers lower total cost at standard usage volumes (1,000 input + 500 output tokens per request at 100,000 requests/month) at $74.50/month, compared to $3,500.00/month for Claude Opus 4.8 (Fast).
Both models are priced in USD per million tokens, the standard unit across all major AI API providers. Claude Opus 4.8 (Fast) charges $10.00/M for input tokens and $50.00/M for output tokens. MiniMax M2.5 (OpenRouter) charges $0.27/M input and $0.95/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.
Context window capacity differs between the two: Claude Opus 4.8 (Fast) supports up to 1,000,000 tokens in a single request, versus 196,608 tokens for MiniMax M2.5 (OpenRouter). 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.
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Relevant Use Cases
See cost recommendations for workloads where Claude Opus 4.8 (Fast) or MiniMax M2.5 (OpenRouter) is recommended.