GPT API & Claude API Models and Pricing
Compare live GPT API and Claude API model pricing, availability, and compatible endpoints. Access multiple model providers through one CostRouter API key with usage-based billing.
New accounts receive $0.10 in trial credits. Use representative workloads to verify model identity, response quality, and API compatibility before moving to production.
- One top-up
- One API Key
- Every connected model
- Pay per use
Supply-chain efficiency lowers costs without changing the requested model. When another route to that model remains available, CostRouter supports route-level failover; provider-wide outages remain outside our control. Eligible CostRouter availability incidents receive service credits under the applicable policy.
- Standard groupsApprox. 20% off
- AWS, Microsoft Azure, and Google Cloud partner channels
- Value groupsApprox. 70–80% off
- Aggregated rates from verified compute and API partners
- Model integrity, with no silent substitution
- Route-level failover
- Latency-aware routing
- Incident service credits
- Request-level usage and cost visibility
Enterprise partnerships
For high-volume or business-critical workloads, we tailor official-channel access, volume pricing, and technical support to your model, region, concurrency, and usage requirements.
Formal company-to-company contracts and B2B bank transfers between corporate accounts are supported.
Contact salesAvailable AI API Models
Search live GPT API, Claude API, Gemini, DeepSeek, Grok, and Qwen models. Compare token or request pricing, then copy the model ID required by your integration.
How to read CostRouter pricing
Prices are shown in USD and use the lowest available price multiplier in the selected routing and pricing group. Token models show input and output prices per 1M tokens; per-request models bill per call; dynamic pricing varies with request parameters such as image size, audio duration, cache usage, or pricing tier.
GPT and Claude API FAQ
Can I access GPT and Claude APIs with one API key?
Yes. One CostRouter API key can access the available GPT, Claude, and other AI models listed in this catalog. Select the required model ID and a compatible endpoint for each request.
How is GPT API and Claude API pricing displayed?
Token-based models show input and output prices per million tokens. Request-based models show a price per request. The final charge depends on the selected model and billing group.
Which API endpoint should I use?
Use one of the compatible endpoints listed for the selected model. The integration documentation provides the CostRouter Base URL and request formats for supported SDKs.
API model index
GPT and Claude Flagship API Models
A concise reference for flagship GPT and Claude model families available through CostRouter. Use the live catalog above to verify model IDs, endpoint compatibility, route availability, and current pricing.
gpt-5.5GPT-5.5 API
Before integration, verify the available GPT-5.5 route, compatible endpoint, and token billing terms in the live catalog above.
gpt-5.6GPT-5.6 API
Confirm the production model ID, supported request format, and current billing details before routing GPT-5.6 traffic.
claude-opus-4-8Claude Opus 4.8 API
For Anthropic-compatible integrations, verify route availability, endpoint support, and current token pricing in the catalog above.
claude-fable-5Claude Fable 5 API
Confirm the model ID, compatible endpoint, and current availability before sending Claude Fable 5 production requests.