All comparisons
GPT-6 Astra vs. the closest competing models
Pricing
| Metric Type | GPT-6 AstraOpenAI · via OpenRouter | Claude Fable 5.1Anthropic · via OpenRouter | GPT-5.6 SolOpenAI · via OpenRouter | Claude Fable 5Anthropic · via OpenRouter | Claude Opus 5Anthropic · via OpenRouter |
|---|---|---|---|---|---|
| Inputper 1M tokens | $10.00FileImageText | $10.00TextImageFile | $4.00FileImageText | $10.00TextImageFile | $5.00TextImageFile |
| Outputper 1M tokens | $50.00Text | $50.00Text | $20.00Text | $50.00Text | $25.00Text |
| Cached inputper 1M tokens | $1.00 | $0.25 | $0.40 | $1.00 | $0.50 |
| Cache writeper 1M tokens | $12.50 | $12.50 | $5.00 | $12.50 | $6.25 |
| Cache write (1h)per 1M tokens | — | $20.00 | — | $20.00 | $10.00 |
| Web searchper request | $0.010 | $0.010 | $0.010 | $0.010 | $0.010 |
This pricing and capability matrix of the OpenAI’s flagship GPT-6 Astra model against top-tier frontier models from Anthropic and OpenAI available on OpenRouter:
- GPT-6 Astra (OpenAI)
- Claude Fable 5.1 & Claude Fable 5 (Anthropic)
- GPT-5.6 Sol (OpenAI)
- Claude Opus 5 (Anthropic)
Spotlight: GPT-6 Astra
- GPT-6 Astra is optimized for complex OS navigation, multi-step software engineering, cybersecurity evaluations. Made as an end-to-end autonomous "computer operator".
- Model have a 1.05M token context window alongside with configurable reasoning effort levels (low, medium, high, xhigh, max) to tailor cost to task difficulty.
Main comparison highlights
- GPT-6 Astra and Claude Fable 5.1/5 now define the apex tier for mission-critical reasoning, deep research, and autonomous agent execution.
- For workloads where top models isn't required, GPT-5.6 Sol ($2/$10) and Claude Opus 5 ($5/$25) provide balanced, budget-conscious alternatives.
- High-volume, repeated-prompt pipelines gain the steepest discount on Claude Fable 5.1 ($0.25/1M cached input), while Astra maintains standard 90% savings over fresh inputs ($1.00 vs. $10.00).
Related comparisons
- Claude Fable 5.1 vs. the closest competing modelsClaude Fable 5.1 vs Claude Fable 5 vs GPT-5.6 Sol vs Kimi K3 vs Claude Opus 5
- Claude Opus 5.5 vs. Claude Opus 5 and the Closest Competing ModelsClaude Opus 5.5 vs Claude Fable 5.1 vs Claude Opus 5 vs GPT-6 Sol vs GPT-6 Astra
- Grok 4.6 vs GPT-5.6 Sol vs Claude Fable 5 vs Claude Opus 5Grok 4.6 vs GPT-5.6 Sol vs Claude Fable 5 vs Claude Opus 5
- Qwen3.8 Max vs the latest frontier modelsQwen3.8 Max vs Claude Fable 5 vs Claude Opus 5 vs GPT-5.6 Sol vs Kimi K3
- Claude Opus 5 vs. The Top AI ModelsClaude Opus 5 vs Claude Opus 4.8 vs Claude Fable 5 vs GPT-5.6 Sol vs Kimi K3 vs Grok 4.5
- Muse Wonder vs Claude Opus 5.5 vs Fable 5.1 vs GPT-6 Astra vs Gemini 4 ArgonMuse Wonder vs Claude Opus 5.5 vs Claude Fable 5.1 vs GPT-6 Astra vs Gemini 4 Argon
Sources
Model makers/Providers:OpenAI ·Anthropic ·OpenRouter