Model Release Radar
Price/capability frontier position, benchmark scores, and community signal
Model Release Radar
GPT-5.5
openai·closed weights·Proprietary·released Thursday, Apr 23, 2026
Token prices
USD per million tokens via OpenRouter, OpenAI (openai). Checked 2026-10-17 00:21 UTC.
| Token type | USD /1M |
|---|---|
| Input | $5 |
| Output | $30 |
| Cache read | $0.5 |
| Cache write (default) | Unknown |
| Cache write (1 hour) | Unknown |
Cache-write rates with a verified basis replace the ordinary input charge. Unknown rates are never treated as zero. Long-context tiers apply; use the comparison page for a prompt length estimate.
Frontier position
- Behind frontier AA coding index (blended per-1M-token price, 3:1 input/output; not a measured per-task cost) - Claude Opus 5, Claude Opus 4.7, Claude Opus 4.8, GPT-5.6 Sol, Kimi K3 are priced the same or lower and at least as capable.
- Behind frontier AA intelligence index (blended per-1M-token price, 3:1 input/output; not a measured per-task cost) - Claude Opus 5, Claude Opus 4.7, Claude Opus 4.8, Claude Opus 5.5, Muse Wonder are priced the same or lower and at least as capable.
- Behind frontier DeepSWE pass@1 (agentic coding) (measured USD per task) - Kimi K3, Grok 4.6, GLM-5.3, Claude Opus 5, GPT-5.6 Sol are priced the same or lower and at least as capable.
Cost vs. capability
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Benchmark scores
Measured cost per task (DeepSWE)
| Benchmark | Pass@1 | Measured cost / task | Frontier |
|---|---|---|---|
| DeepSWE (agentic coding) (high effort, 95% CI 61.3%-67.5%, 4 runs) | 64.4% | $5.10 (median $4.58) | behind |
Artificial Analysis scores
Artificial Analysis scores describe capability. Compare them against estimated token spend with your cache mix; these estimates are not measured task costs.
| Benchmark | Score |
|---|---|
| AA intelligence index | 37.0 |
| AA coding index | 71.6 |
Variants
This page covers 2 reasoning-effort variants of the same model.
| Variant | AA coding index | AA intelligence index | Blended /1M (3:1 input/output) |
|---|---|---|---|
| High effort (shown above) | 71.6 | 37.0 | $11.25/1M |
| Standard | 74.9 | 38.4 | $11.25/1M |
Community signal
| Variant | Coding Elo | Overall Elo | Votes |
|---|---|---|---|
| High effort | 1,494 | 1,471 | 69,401 |
| Standard | 1,483 | 1,467 | 70,985 |