GPT-6 Astra
GPT-6 Astra is worth evaluating for coding, rag, and agents when its provider route and context window match the workload.
Use it for
- Teams evaluating coding, rag, and agents
- Workloads that can use a 1.05m context window
- Buyers comparing 1 tracked provider route
Do not use it for
- Workloads where another current model has stronger sourced task evidence
- Family
- GPT-6
- Released
- 2026-09-03
- Context
- 1.05m
- Max output
- 128,000
- Knowledge cutoff
- 2026-04
- Specialization
- general
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Weights
- Not released
- Code
- Unknown
Cheapest of 1 route · OpenAI API · cache read $1.00
About
GPT-6 Astra is OpenAI's flagship GPT-6 model, announced September 3, 2026 as a new generation of intelligence for computer use, browsing, software engineering, cybersecurity, science, and professional work. Official OpenAI API id gpt-6-astra. Docs list a 1,050,000-token context window, 922,000 max input tokens, 128,000 max output tokens, Apr 30, 2026 knowledge cutoff, image+text input to text output, reasoning.effort low/medium/high/xhigh/max (none is not supported), function calling, structured outputs, prompt caching, Batch API, computer use, and code interpreter. OpenAI API Standard list is $10 per 1M input tokens and $50 per 1M output tokens.
Top use-case fit: coding, agents, and build tasks
Coding
Included by capability and metadata signals in the decision map.
RAG
Included by capability and metadata signals in the decision map.
Agents
Included by capability and metadata signals in the decision map.
Provider price ladder
Compare API pricing across 1 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Batch in / out | Cache | Route |
|---|---|---|---|---|---|
| OpenAI API | $10.00 | $50.00 | $5.00 / $25.00 | read $1.00 | Serverless |
Available via routers & gateways(15)
LiteLLM
GatewayOpen-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.
OpenRouter
HybridUnified hybrid gateway to 400+ models from 60+ providers via a single OpenAI-compatible API, with optional auto-routing that selects the best model per prompt.
Portkey
GatewayProduction AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.
AIRouter
RouterCommercial LLM router that analyzes incoming requests and routes to the optimal model for cost/quality/latency via a drop-in OpenAI-compatible API, with a privacy-preserving embedding mode that avoids sending prompt content.
Helicone
GatewayObservability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache 2.0 open-source core with a managed hosted tier for logging and analytics.
Kong AI Gateway
GatewayMulti-LLM AI gateway built on Kong Gateway 3.x, adding semantic routing, load balancing, guardrails, and MCP traffic analytics as plugins over Kong's existing API management platform.
Capabilities
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
API versions
gpt-6-astraCheapest of 1 route · OpenAI API · cache read $1.00